Display and input device

This invention is a display and input device, which is used in combined equipment incorporating a number of equipment (for example, a copier, a facsimile machine, a printer or a scanner) having independent operational functions. This display and input device comprises a transparent touch panel having a flat display and is designed so that the picture image information is displayed step by step by the display unit. When a device which incorporates a number of types of equipment having independent operational functions is operated and the picture image information is executed, the display unit changes to display a number of display modes in a certain operating mode according to the input operation for this input unit. Since, at this time, the inputted operation information for the display mode prior to the change is displayed in the display mode after the change, such as pre-operational inputted information display in a message field, the operator of the device can execute an input operation while checking the information he has already inputted. The checking of this information is simple and the operation can be correctly executed.

BACKGROUND OF THE INVENTION 
1. Field of the Invention 
This invention relates to a display and input device, and, more precisely, 
to a combined display and input device used for equipment incorporating a 
number of independant functions, such as copiers and facsimile machines. 
2. Discussion of Background 
Conventional electronic equipment processing picture image information for 
various purposes, such as copiers and printers, are assembled and used as 
discrete and independent single devices. However, with current advances in 
technology, combined equipment which incorporates these multiple functions 
is now coming into practical use. 
However, most of the conventional combined display and input devices 
(control panels) used to operate various modes, such as the copy mode and 
the facsimile mode, in this kind of combined equipment are button-key 
systems which have rows of input keys that differ in purpose for each 
operating mode of the combined equipment. Also, most of the conventional 
displays are designed to display the required input operation information 
for the operation by switching ON and OFF a multiplicity of LEDS. 
For this reason, when using this conventional equipment, in the copy mode, 
for instance, the inputted operation information for copy magnification 
and the number of copies is not displayed on the face of the control 
panel. Thus, the operator of this equipment has to carry out the required 
input operation for this input operation information from memory. 
Such equipment causes problems such as not obtaining the copy picture 
images of the desired magnification, or not obtaining the desired number 
of copy picture images due to operator error. When such problems occur, 
the input operation must be restarted. 
This kind of problem occurs, not only in the copy mode, but also in other 
operations, such as in the printer mode and the like which accompany the 
magnification alteration operation. 
As described above, in prior art equipment, there was a problem of not 
being able to achieve effective application of the equipment, that is, the 
operation could not check the inputted operation information when carrying 
out a complex input operation, and re-input operations where required. 
SUMMARY OF THE INVENTION 
The object of this invention is to provide a display and input device which 
can check the inputted operation information even in cases when the 
operating mode has changed and which, thus, can make more efficient use of 
this device. 
This invention is a display and input device incorporating a display unit 
and an input unit, which is used in combined equipment incorporating a 
number of equipments having independent functions. This is display and 
input device has the characteristic of being designed so that the display 
unit has a number of display modes which vary according to the input 
operation for the device, and when the display mode has changed, the 
operation information inputted prior to the change in the display mode is 
displayed by the display unit after the change. 
The following is an explanation of the operation of a device with the above 
construction. When a combined equipment which incorporates a number of 
equipments having independent operation functions for picture image 
information is operated, the input unit in the combined display and input 
device used in this combined equipment can be operated while looking at 
the information displayed on the display unit. The display unit changes to 
display a number of display modes in a certain operating mode according to 
the input operation for this input unit. Since, at this time, the inputted 
operation information for the display mode prior to the change is 
displayed in the display mode after the change, the operator of the device 
can execute an input operation while checking the information he has 
already inputted.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
A first embodiment of a display and input device according to the present 
invention will now be described with reference to the accompanying 
drawings. Combined equipment 100 used in a first preferred embodiment of 
the present invention shown in FIG. 1 includes a combined display and 
input device 800, which is composed of and incorporates transparent touch 
panel 800a. Transparent touch panel 800a is a rectangular input unit: 
combined equipment 100 also includes flat display 800b, which is a display 
unit facing transparent touch panel 800a; a combined function unit 300; a 
memory 200 in which are pre-stored the control program for displaying the 
display areas and input areas for the various modes in combined display 
and input device 800 and the operation program which carries out 
operational control of combined function unit 300; and a controller 220 
which loads the control programs from memory 200 and acts as a control 
device for setting the key input areas for transparent touch panel 800a 
and transmitting the key input signals and, at the same time, for 
executing the various displays (described below) for flat display 800b. 
Transparent touch panel 800a is composed of any of various detection 
systems, such as an optical system, a transparent conductive film 
(resistor film) system, a capacitance system or a pressure system. As 
described below, transparent touch panel 800a is designed to transmit 
touches of an operator's fingers to controller 220 as key input signals. 
Flat display 800b is composed of flat displays, such as a liquid crystal 
display (LCD), a plasma display (PDP), a light-emitting diode (LED) 
display, an electroluminescent display (ELD), an electrostatic memory 
projection type display (ECD), and CRT display. 
Combined function unit 300 comprises four types of equipment: a copier 120, 
a facsimile 130, a printer 140 and a scanner 150. 
Moreover, combined equipment 100 has input sound generator unit 160, 
composed of a buzzer, a chime and an electro-synthetic sound generator, 
which generates any audible sound such as a buzzer sound, a chime sound or 
an electro-synthetic sound. 
As shown in FIG. 2, controller 220, combined function unit 300 and memory 
200 are housed in cabinet 400. Combined display and input device 800 is 
installed at one corner of cabinet 400 in combined form, with transparent 
touch panel 800a on top and flat display 800b below. 
In FIG. 2, cabinet 400 also comprises a cover 500, a paper supply cassette 
600 and a paper dispense tray 700. 
Next, the operation of combined equipment 100 will be described, with a 
focus mainly on the various display modes in combined display and input 
device 800 and the setting modes of the key input positions which 
correspond to these display modes. 
When combined equipment 100 is started, controller 220 loads the initial 
mode control program which is stored in memory 200. For example, if 
combined equipment 100 is set with the Copy Mode (COPY) as the initial 
mode, the content of the control program shown in FIG. 4 is loaded and, on 
the basis of this, display signals are sent to flat display 800b, and the 
display information and key input positions for the Copy Mode (COPY) are 
displayed in the display mode as shown in FIG. 3. 
That is to say, first, frame line L is displayed on flat display 800b 
(ST1), and then Mode field 90 is displayed in the left corner of frame 
line L (ST2). Mode field 90 contains the word MODE and four rectangular 
frames, which are superimposed but slightly shifted in relation to each 
other. In these superimposed frames, characters indicating copy (COPY), 
facsimile (FAX), printer (PRINTER) and scanner (SCANNER) are displayed in 
that order, starting from the top. Also, controller 220 sets a touch area, 
i.e., an area which, when touched with a finger, causes an electrical 
signal to be generated, for the whole area of Mode field 90. 
Next, controller 220 displays Copy Specification field 10 immediately to 
the right of Mode field 90 (ST3). The following items are displayed in 
Copy Specification field 10, as shown in FIG. 3: Original Document Size 
10a in the upper left-hand side (for example, the characters A4); Copy 
Paper Size 10b, on the upper right-hand side; arrow sign 10c between 
Original Document Size 10a and Copy Paper Size 10b and Number of Copies 
display section 10d below Copy Paper Size 10b. 
Input keys 10e for the number of copies are also displayed as, for 
instance, plus (+) for increasing the number of copies and minus (-) for 
decreasing the number of copies, beneath Number of Copies display section 
10d. Both keys are approximately 5.times.5 mm. 
Controller 220 also displays Magnification Mode field 11 immediately to the 
right of Copy Specification field 10 (ST4). 
In Magnification Mode field 11 are respectively displayed; Picture Image 
Magnification display section 11a at the top, Magnification Number display 
section 11b in the center and Magnification input keys 11c at the bottom. 
Picture Image Magnification display section 11a displays three superimposed 
paper graphics for reduction (Reduction, for example, 50%), standard 
(Standard: 100%) and enlargement (Enlargement: for example, 200%). 
Next, controller 220 displays Photograph Mode field 12 positioned above 
with Edit Mode field 13 below, immediately to the right of Magnification 
Mode field 11 (ST5, ST6). 
In Photograph Mode field 12, Document 12a and Camera 12b are displayed 
(ST105). Also, in Edit Mode field 13, mark 13a and the characters for edit 
(EDIT) 13b are displayed. 
Also, controller 220 displays Message field 14 and Picture Image Density 
field 16 immediately to the right of Photograph Mode field 12 and Edit 
Mode field 13. 
Message field 14 is a rectangular shape designed to be displayed in the top 
right-hand corner of flat display 800b (ST7, ST8)). 
In Picture Image Density field 16, Light Copy display section 16a, 
Automatic display section (with the character A) 16b, Dark Copy display 
section 16c (shown by diagonal shading) and 2 arrows are displayed. 
Next, controller 220 displays Clear/Stop (C/S) field 17, which has a height 
of approximately 5 mm and a width of at least 5 mm, beneath Picture Image 
Density field 16 (ST9). 
Also, controller 220 displays Print field 18, shown by a graphic of copy 
paper, beneath Message field 14 in the lower right-hand corner of flat 
display 800b (ST10). At the same time, it displays the Help (HELP) field 
15 in the upper right-hand corner of Message field 14 (ST11). 
At the same time as displaying the various fields for flat display 800b, 
controller 220 also transmits control signals to transparent touch panel 
800a based on the control program. Controller 220 sets touch areas for the 
following: the areas for Copy Paper Size 10b and Number of Copies input 
keys 10e in Copy Specification field 10; the areas of Magnification input 
keys 11c of Magnification Mode field 11; the whole area of Photograph Mode 
field 12; the whole area of Edit Mode field 13; the whole of Help field 
15; the areas of Light Copy display section 16a, Automatic display section 
16b and Dark Copy display section 16c in Picture Image Density field 16; 
the whole area of Clear/Stop field 17 and the whole area of Print field 
18. 
Therefore, transparent touch panel 800a is designed not to exhibit any 
touch action if any sections other than the various areas described above 
are touched. 
For example, an operator may input instructions to execute enlargement of 
an A4 size original document to an A4 size copy paper at 120% 
magnification and input to Number of Copies input keys 10e in this kind of 
Copy Mode. 
Next, out of the copy modes described above, the 2nd Generation Edit Screen 
Mode and the 3rd Generation Edit Screen Mode for executing the editing of 
picture image information are explained with reference to FIGS. 5 to 8. 
FIG. 5 shows the 2nd Generation Edit Screen Mode which is set by the single 
operation of Edit Mode field 13 in the Copy Mode shown in FIG. 3. 
That is, when Edit Mode field 13 is operated once, controller 220 controls 
input sound generator 160 to generate an audible sound once and, at the 
same time, completely clears the Copy Mode shown in FIG. 3. Then 
controller 220 displays the frame line L shown in FIG. 5 on flat display 
800b based on the control program shown in FIG. 6 (ST12). Next, controller 
220 executes the display of Mode field 28 which is the same as Mode field 
90 (ST13) and sets the touch area for this Mode field 28. Furthermore, 
controller 220 displays centering and Moving field 29 immediately to the 
right of Mode field 28 (ST14) and also executes the setting of touch areas 
in the required areas. Centering and Moving field 29 is composed of the 
following, displayed on flat display 800b: Original Document 29a, shown by 
edit mark [A] in the upper left corner; Centering display section 29b, 
shown by edit mark [A] in the center; Moving display section 29c, shown by 
edit mark [A] in the lower right corner, and arrows 29d. 
At the same time, touch areas are set on transparent touch panel 800a in 
areas corresponding to Centering display section 29b and Moving display 
section 29c. Next, controller 220 displays Trimming and Masking field 30 
immediately to the right of Centering and Moving field 29 (ST15) and sets 
touch areas in the required areas. 
In this Trimming and Masking field 30, the following are displayed by flat 
display 800b: Original Document 30a in which the mark B[A]C is displayed 
in the center; Trimming display section 30b in which the mark [A] is shown 
in the center; Masking display section 30c in which the mark B[ ]C is 
shown in the center, and arrows signs 30d. 
At the same time, touch areas are set in Trimming display section 30b and 
Masking display section 30c. 
Next, controller 220 displays Message field 31 immediately to the right of 
Trimming and Masking field 30 (ST16) and also displays Help field 32 
(ST17) together with setting the touch area for Help field 32. 
Furthermore, controller 220 executes the display of Clear field 35, Next 
field 33 and Return field 34, in that order, underneath Message field 31 
(ST18, ST19, ST20), and also executes the setting of the touch areas for 
these fields. 
In message field 31 of the 2nd Generation Edit Screen Mode which has been 
set in this way, as shown in FIG. 5, at this time, the inputted operation 
information which is displayed as a pre-operational inputted information 
display 50, composed of the magnification information "A4.fwdarw.A4, 120%" 
and number of copies information "(3)" which were set in the display mode 
of the Copy Mode are displayed. 
By this means, the operator of this device can execute various input 
operations in the 2nd Generation Edit Screen Mode while checking the 
inputted operation information the operator himself has already inputted. 
Next, the 3rd Generation Edit Screen Mode is explained with reference to 
FIGS. 7 and 8. 
When the operator touches Next field 33 once, in the 2nd Generation Edit 
Screen Mode state shown in FIG. 5, the 2nd Generation Edit Screen Mode is 
completely cleared under the control of controller 220. 
Then, controller 220 displays the following items in order on flat display 
800b (ST21 to ST30): frame line L; Mode field 35 similar to Mode field 28; 
Type of Edit and Setting Number display 36; Set Manual display field 37; 
Message field 38; Help field 39; Set field 40; Clear field 41; End field 
42; Next field 43 and Return field 44. 
The following items are displayed in the above type of Edit as Setting 
Number display field 36: Edit Original Document 36a; Type of Edit display 
section 36b; Input Setting Number section 36c, composed of the numbers 1 
to 6; Output Setting Number section 36d, composed of the numbers 1 to 6, 
and arrow 36e. 
Controller 220 displays Edit Original Document 36a in reverse (for 
instance, in white on a black ground) on the initial screen and, at the 
same time, causes the [1] part of Input Setting section 36c to light up. 
In this state, when there have been 2 input operations in Set field 40, 
Edit Original Document 36a is displayed in regular form (black on a white 
ground) and controller 220 executes the display control required for 
editing such as the reverse display of Type of Edit display section 36b. 
In Set Manual field 37, a Digitizer graphic is displayed, as shown in FIG. 
7. When there is a reverse display of Edit Original Document 36a, 
controller 220 controls the display so that a Pen graphic 37b is shown at 
position (1) in Digitizer graphic 37a and, at the same time, when there is 
1 input operation in Set field 40, it controls the display so that Pen 
graphic 37b is shown at position (2) in the Digitizer graphic. 
In addition, in the case of the 3rd Generation Edit Screen Mode, controller 
220 sets the respective touch areas in Mode field 35, Help field 39, Set 
field 40, Clear field 41, End field 42, Next field 43 and Reture field 44. 
Moreover, in the case of the 3rd Generation Edit Screen Mode, since, at 
this time, the inputted operation information which is displayed as a 
pre-operational inputted information display 50, composed of the same 
magnification information "A4.fwdarw.A4, 120%" and the number of copies 
information "(3)" as in the 2nd Generation Edit Screen Mode shown in FIG. 
5 are displayed in Message field 31, the operator can execute input 
operations while checking the inputted operation information. 
Next, the case of carrying put facsimile transmission from combined 
equipment 100 is explained with reference to FIG. 9. 
In this case, Mode field 90 is touched once with a finger. Then, controller 
220 completely clears the display mode shown in FIG. 3 and, at the same 
tine as executing the display of frame line L for the Facsimile Mode shown 
in FIG. 9, controller 220 displays Mode field 56, in which the frame with 
the characters for facsimile (FAX) is uppermost, in the position of Mode 
field 90. At this time, a touch area is set for the whole area of Mode 
field 56 based on a similar control operation to those mentioned above. 
Next, controller 220 executes the following, based on similar operations to 
the cases described above: the display of Transmission and Reception 
Switching field 57 and the setting of a touch area covering the while area 
of this field; the display of Original Document Density field 58 and the 
setting of touch areas for Dark display section 58a, Automatic display 
section 58b and Light display section 58c; the display of Photograph Mode 
field 59 and the setting of touch areas for Document 59a, Camera 59b and 
Camera Fine (FINE) 59c in this Photograph Mode field 59; the display of 
Dial field 60, which is composed of Telephone mark 60a, Telephone Number 
display section 60b, Short Dialling mark (*) 60c and ten-key 60d; the 
display of Timer Transmission field 61, composed of a Clock display, and 
the setting of the touch area for Timer Transmission field 61; the display 
of Password field 62 and the setting of a touch area for the whole area of 
Password field 62; the display of Polling Reception field 63 and the 
setting of a touch area for the whole area of this field; the display of 
Telephone Reservation field 64 and the setting of a touch area for the 
whole area of this field; the display of Message field 65; the display of 
Help (HELP) field 66 and the setting of a touch area for the whole area of 
this field in upper right corner of Message field 65; the display of 
Clear/Stop field 67 and the setting of a touch area for this field in the 
area below Message field 65 and the display of Facsimile field 68 and the 
setting of a touch area for this field. 
In the case of this Facsimile Transmission Mode, since the functions are 
completely different from those of the Copy Mode described above, even if 
the operator switches to the Facsimile Transmission Mode immediately after 
executing the input for the Copy Mode, display control is executed by 
controller 220 so that the inputted operation information in the Copy Mode 
is not displayed in Message field 65 in the Facsimile Transmission Mode 
shown in FIG. 9. 
Moreover, when the operator operates the various touch areas in each of the 
operation modes described above, since an audible sound is generated from 
input sound generator unit 160 on each occasion, based on the control of 
controller 220, the operator can also check the state of the input 
operations he has performed by his sense of hearing. 
This invention is not limited to the embodiment described above, and 
various types of modification are possible within the limits of the 
essential points. 
For example, in the embodiment described above, the case of displaying 
inputted operation information for the display mode which is the bases of 
the Copy Mode in the displays of the 2nd Generation Edit Screen Mode and 
the 3rd Generation Edit Screen Mode is explained. However, this invention 
is not limited to this and, needless to say, the inputted operation 
information in the 2nd generation screen or 3rd generation screen in the 
respective modes in the case of the Facsimile Transmission and Reception 
Modes, the Printer Mode and the Scanner Mode can also be exhibited. 
When using this invention as described in detail above, despite changes in 
the display mode, the operation information inputted prior to the change 
can be displayed in the display mode after the change. Therefore, it is 
possible to provide a combined display and input device which can be more 
effectively used, since it is easy to check the inputted operation 
information.