JPS5816183B2 - calendar display device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a calendar display device.

Calendar display devices, which are generally used in small watches and the like, only display the current date and day of the week, making it difficult to use because it is difficult to tell which day of the week the current month is.

Therefore, the present invention eliminates the drawbacks of the conventional method by providing display elements corresponding to each date and displaying the display elements corresponding to Sunday and the current day in different display modes.

An embodiment of the present invention will be described below based on the drawings.

The display device Δ in FIG. 1 includes the glass substrates B1 and B2 in FIG. 2 and a liquid crystal (not shown) filled between the two substrates.

), and numbers from 1 to 31 are printed on one side of the glass substrate B1 as shown in the first diagram.

Further, on the other surface of the glass substrate B1, selection electrodes e1...B31 are arranged at positions corresponding to the dots marked for each numerical value.

The selection electrodes e1...B28 are divided into four and three small blocks, and each block is connected in a zigzag manner by lead wires S1...B4.

Also, the selective electrode e29. corresponding to the 29th, 30th and 31st days. e
3o and e3□ are lead wires S5. B6. Offll + rn2 + rn3 connected to S7 are masking electrodes of 29, 30 and 31 days, respectively.

On the other hand, common electrodes E1...B9 are disposed on the glass substrate B2 at positions facing the selection electrodes e,...B3°. E3. E5. E7 is a selection electrode (el...B4) l (B8""11) I
(B15...B18)? (B22""'25
), and the common electrode E2°B4. B6. B8. B9
are the selection electrodes (B5゜B6 TS B7) respectively.
(B12 TS B13 TS B14) ν (B1
9 Tsu e20 Tsu e21) Tsu (B261 e27 Tsu e28
) (B291e30183□).

In addition, the common electrode E1o is a masking electrode m12m22m3
It is to face each other.

Selection electrode e1...B31, liquid crystal and common electrode E1...
...E constitute display elements a1...a3□, respectively.

In the above configuration, the following signals are selectively applied to the common electrodes E1...B8.

The signal CP3 in FIG. 3 is applied to the common electrode that corresponds to that day, the signal CP2 is applied to the common electrode that does not correspond to either that day or Sunday, and the signal CP1 is applied to the common electrode that corresponds to Sunday but does not correspond to that day. Apply.

These signals CP1. CP2. CP3 has the same cycle but different phases, and the duty is set to 1.

Lead wire S1 connected to one selection electrode C1...C28
. . . Signals QP1...QP4 shown in FIG. 3 are selectively applied to S4 as shown below, and the display element corresponding to Sunday is turned on, and the display element corresponding to H is made to blink.

If the current day falls on a Sunday, the signal QP1. QP2 is applied alternately at a period of, for example, 1 second, and the signal Q4 is applied to the other lead wires.
Apply.

This results in the same day (also Sunday).

) The display element has a signal ■1. ■2 is applied alternately and blinks, and the Sunday display element receives the signal ■9. ■1o is applied alternately to turn on the light, and the other display elements receive signals v4. v5.
v6. Either v8V1° is applied and the light is turned off.

Next, if the current day and Sunday do not overlap, a signal QP3. QP
, is applied alternately to generate the signal ■3. ■Apply 4 alternately and make it blink.

On the other hand, at this time, the lead wire of the selection electrode corresponding to Sunday is
When the selected electrodes of the current day and Sunday are facing the same common electrode, the signal QP1 is applied and the light is turned on by the signal ■1, and when the selected electrodes of the current day and Sunday are not facing the same common electrode. The signal QP2 is applied and the light is turned on by the signal V1°.

A signal QP4 is applied to the lead wires other than those mentioned above to turn off the remaining display elements.

In the above manner, the current day and Sunday displays from 1 to 280 are set to 1i.

, Next, the display of 29.30.31 is performed as follows.

Common electrode E0. E1o always receives signals CP3.
Apply CP1.

On the other hand, masking electrode ff14 + n12 y n13
If the current month is 2 s El (2,14), then
The signal QI)2 is marked IJ111. .

Turn on the masking element and mask the numbers 29, 30, and 31.

If the current month is 29H (February), apply the signal QP2 to the masking voltage tThrn21 m3, and mask the numerical value 30°31. 29 F (or [1 day or 1 (() when there is no signal QP.

7, when it is Sunday, signal QP3 is applied, and when it is the current month, signal QP3. In the case of the 51st day of the 51st month of the 1st and 30th days of the month when QP is applied alternately, the display is made in the same manner as above (11).

Next, an example of a circuit configuration for realizing the first driving method described above will be explained.

In Fig. 4, OS C is a water oscillator, [) is a frequency divider, and output terminals fD and fF output pulses for driving the liquid crystal at AC 1 and pulses for blinking the display element of 1, respectively. ] IIy, a pulse is generated.

DC is a counter, and from its output 24. , tJ
This pulse occurs for the different rivers.

MC is a month discrimination circuit consisting of ['' and a month counter, etc., and determines whether the current month is 291'', 30[], or 31''1, and inputs terminals a and b to terminals a and b, respectively.
, c.

Note that various configurations are known and will be omitted here.

SC is a hexadecimal ring counter, which produces a selected output of the first day of the week.

R1 and R□ are respectively heptadic and 9-adic ring counters, and are respectively for the selection amount The1...C31 and the selection 1L of the common electrodes C1...Cto.

T is a pulse generation circuit, and its output terminals p, , J
)2. From p3, the common type −j6 (,”1-C1oo
Bessatsu 1 River” Believe CPI + CF21 c P3 (3rd
) is generated from the output terminals Q1...C4, and the selection electrode e1...e:31'' is the signal Q■)1 for the selection electrode e:31''.
...Q■) 4 (Figure 3) JO occurs.

G1...C8 are gate 1 circuits.

M and N are common electrodes C3...(,.

It is a control circuit that controls the supply of signals to the selection electrodes c1...e3+"', and the detailed configuration of the control circuit M is shown in FIG.
3 is a gate circuit, N',...■4 is an inverter.

Figure 6 shows the open side 1 circuit N in detail, and G1
9...G7] is a y-1' l-circuit, \f5.
...~L24 is impark.

Next, regarding the operation: Condition 5. In Figure 4, the output of the ring counter SC generates an output that indicates whether (ii)1 is Sunday of the current month, and the terminal J1...
From J4, the selection output of the selection electrode corresponding to [1] is generated 3) 1, that is, the lead wire S1 in FIG.
At this time, selected outputs are generated from the sieve meshes 'J1...J4, respectively.

On the other hand, from Hincho-W, when either the 5th, 6th or 7th is Sunday, that is, the 2nd t'? ] common type &), 21 E,
+ R6+ E8itL Opposite L TaEI M Kafj
Output occurs at tl&', no.

In addition, the ring counter I (1 receives the output from the counter D C and inputs the current day's output I''2, so θ) to the output terminal, and the output terminal A of the gate circuit G5, G6, C7.
．． 3. From 4 onwards, the souil is shown in Figure 7, and 3 on K2°. , the current day's selection output as shown in 4 is generated.

Further, the ring counter R2 receives the output from the ring counter R1, and select outputs of the common electrodes E1...E9 are sequentially generated from its output terminals . . . L.

First, the output generated from the control circuit M will be explained with reference to FIG.

In the following explanation, it is assumed that the 2nd, 9th, 16th, 23rd, and 30th are Sundays.

That is, the common electrode E1. E3. E5. Assume that Sunday's date is opposite E7E9.

Therefore, in this case, the output terminal W of the gate circuit G4 in FIG.
, G14 is closed.

Therefore, when the terminal L1 is held at 1'', the signal CP3 is supplied to the gate circuit G13 via the gate circuits G1□ and G1□, and the level of the signal CP3 is inverted every cycle by the pulse from the terminal fD and is shared. is supplied to electrode E.

Similarly, terminal L3. L5. L7 in order! +1
11, the common electrode [3r E5 , E7
The signal CP3 is sequentially supplied with its level inverted every cycle.

Furthermore, when terminals L1+L3 and L5+L7 are 0'', data 1-circuit G9 is opened, and signal CP from terminal P1
.

The level is inverted every power cycle and the common electrode E1゜E3
+E5) is supplied to E7.

One terminal L2. L4. L6. When L8 is 1", the circuit G16 is opened and the common electrode E2.
4. E6. The signal CP3 is inverted and supplied to E8 every cycle.

Also, terminals "21" 4 + "6 + 8" are °゛0''
When , the gate circuit G15 is opened and the signal CP2 is applied to the common electrodes E21, E4. l E6 T Combined with E8.

That is, as shown in FIG. 7, C+ + C2..., the signal CP3 is supplied to the common electrode corresponding to the current date, and among the common electrodes not corresponding to the current day, the common electrode corresponding to Sunday El + E3 + E51 E7 has pulse CP
1 is supplied, and the common electrode E2 does not correspond to 8 days either.

E4. +E6 +E8 is supplied with signal CP2.

Next, the operation of the control circuit N will be explained with reference to FIG.

Since the 2nd, 9th, 16th, 23rd, and 30th are Sundays, terminal J7. J3J4. ．． W is held at 0'', and terminal J2 is held at 1''.

Considering the signal supplied to the lead wire S1, since the terminal Jk (k=1) in FIG. 6 is 0'', the gate circuit G23TG36 is open.

Therefore, as shown in Figure 7, 1 is 1.8, 15,
22.29 (1") (Then, the output of the gate circuit G23 becomes 1", and the single power of the gate circuits G24 and G2 is maintained at 1".

Therefore, the gate circuits 0241G25 are alternately opened by the 111z pulse from the terminal fF, and the terminals Q4. Q
The signal from QP4.3. QP3 passes alternately.

As shown in FIG. 7, the signals QP4+QP3 are supplied to the gate circuit G39 via the gate circuit G26+038, and are inverted in level every cycle and supplied to the lead line S1.

Further, when 1 at the terminal is 0' on a date other than the above, the gate circuit G37 is opened by the output of the gate circuit G36, and the signal QP is supplied to the lead line S.

On the other hand, on the 1st, 8th, 15th, and 22nd, the common electrode E1. E3. E5. Since the signal CP3 is supplied to E7, the selected electrode e] +
68 Tel! The signal V3. of FIG. v4 is applied alternately and blinks to display the current day.

On dates other than the above, the signals V4°V8. V
12 is applied and the display becomes non-display.

Lead wire S3. A signal similar to that described in - is also supplied to S4.

In other words, in Figure 7, 3 and <3.6°1, 0, 13...
When the terminal 3 becomes 1'', the signal QP is applied to the lead wire S3.
3+QP4 are supplied alternately, and on other days only signal QP4 is supplied.

On the other hand, connect the terminals with 4 and <4.5, 11, 12... mortar (
1” (This causes signals QP3 and QP to be sent to lead wire S4.
4 is supplied, and only the signal QP4 is supplied to the other days.

Next, the signals supplied to the lead wire S2 will be explained.

Since terminal J2 is currently held at 1 pin, gate circuit G19. G31's power is kept at 1''.

Further, since the terminal W is held at O'', the single power of the gate circuit G3o is held at 1''.

First, if Sunday coincides with the current day, for example, if the current day is the 2nd Sunday, the terminal 2 becomes 1'', so the gate circuits G2o and G2□ are opened by the output of the gate circuit G19, and the signal QP1 and QP2 are alternately supplied to lead wire S2.

At this time, the signal CP3 is applied to the common electrode E1, and the signal CP3 is applied to the common electrode E3.
The signal CP1 is applied to +E5 +E7, and the common electrode E2
A signal CP2 is supplied to r E4 and L6 + Es.

Therefore, the pulse V1 of FIG. 2 is applied between the selection electrode e2 and the common electrode E1. v2 is applied alternately and blinks to display the current day.

On the other hand, the selection electrode e9 + G16 + G23 and the common electrode E3°E5. Pulse ■9 between E7. V1o is applied alternately to display Sunday.

Furthermore, selection electrode e7°G14. + G211 G28
and common electrode E21 E4. +E6 +E8, pulses v and TV6 are applied alternately, and the display is not displayed.

Even if another Sunday overlaps with the current day, the current day will flash, the other Sundays will be displayed, and weekdays will be hidden, in the same way as above.

Next, the case where Sunday and the current day do not overlap will be explained.

In this case, 2. J2 is +1 each Q I+
, ? T l 11 and is held at gate circuit G33. by the output of gate circuit G31. G34’s single power is 1″
is maintained.

First, a case will be described in which the current day's selection electrode and Sunday's selection electrode face the same common electrode.

For example, if the 1st is the current day, the terminal L1 is held at °'1', and the outputs of the gate circuits G28, G3o, and G32 are held at °'1'.

Therefore, signal QP1 is connected to gate circuit 0341 G351
It passes through G38 and is supplied to lead wire S2.

On the other hand, at this time, the signal CP3 is applied to the common electrode E1, and the signal CP3 is applied to the common electrode b3+E5. The signal CP1 is applied to E7, and the common electrode E2 +
E4. ' Signal CP2 is supplied to E8.

Therefore, there is a third electrode between the selection electrode e2 and the common electrode E1.
The pulse v1 in the figure is the selected electrode e9 + G16 + G
23 and the common electrodes E3, E5, and E7, a pulse V9 is applied and displayed.

On the other hand, a pulse 5 is applied between the selection electrode e7+G141e211G23 and the common electrodes E2)E4)L6 and Eg, so that they are not displayed.

In this way, when the Sunday and current H selection electrodes face the same common electrode, the signal QP1 is supplied to the lead wire S2.

Next, if the selected electrodes for Sunday and that day are facing different common electrodes, terminals L1°L3, L5
+L7 are both held at 0”°, so the output of gate circuit G28.G3o, G3□ is 41029
The gate circuit G33 is held open, so that the signal QP
2 is supplied to the lead wire S2, and the third one is supplied to the Sunday display element.
The pulse ■1o shown in the figure is applied and displayed, and the pulse v2.
When any one of V6 is applied, the display becomes non-display.

Display of the current day and days of the week from the 1st to the 28th is performed as described above, and the display of the 29th, 30th, and 31st is performed as follows.

The common electrodes Eg + EIO each have a signal CP3°C.
Pl is constantly supplied.

On the other hand, signals are supplied to the masking electrodes ff11 and rn2+m3 in the following manner.

First, if the current month is the 28th, the month discrimination circuit M in Figure 4
Since the output terminals a, b, and c of C are all held at 0'', the gate circuit G46 + 05B y 06g in Fig. 6 is opened. Therefore, the signal QP is applied to the lead wires 85, 86 + 87.
2 is generated and supplied to the masking electrode m1 + m2 + m3 and the selection electrode e29 + G30 + G31.

Therefore, the pulse v2 is applied to the display element a29 + G30 + G31 to make it non-display, and the pulse ■1o is applied between the masking electrode ff11 + m2 + m3 and the common electrode E1o, and the numbers 29, 30.31 are masked. Ru.

Next, if the current month is the 29th, the terminal a of the month discrimination circuit MC is held at J'', and the gate circuit G48 is opened. G42°G43 opens, signal QP3.Q
P4 passes alternately.

Therefore, the display element a29 receives pulses 3. V4 is alternately applied and blinks, and pulses V11+12 are alternately applied between the masking electrode m1 and the common electrode C10, so that no masking is performed.

On the other hand, the signal QP2 is applied to the masking electrode m2 + r113.
is supplied, and the numerical value 30, 3] is masked.

Furthermore, if the 29th is not the current day but falls on a Sunday, the gate circuit G41 opens and the signal QP3 passes through the display element a.
Pulse 3 is applied to 29 and displayed.

Furthermore, when the 29th is neither Sunday nor the current day (in this case, the gate circuit G4o is opened and the signal QP4 passes through the display element a).
A pulse V4 is applied to 29 and the display becomes non-display.

Next, if the current month is the 30th, terminal a of the discrimination circuit MC
, b are held at '1'', and the data i/circuit G481 G5
111 is opened, so a pulse is applied to the display element a2Q+G30 in the same manner as described in section 2, and the display up to the 30th is performed.

If the current month is the 31st, terminal a of the discrimination circuit MC,
b, c are held at 1'', and gate circuits G48.G50.
G69 opens and displays up to the 31st.

In the above embodiment, each date was printed on the glass substrate in advance, but the invention is not limited to this, and as shown in FIG.
1...f3, respectively selected electrodes e1...G31
Common electrodes E1, . . . E15 may be provided opposite to the respective electrodes f1, .

In this case, a signal QP1...QP is supplied to the electrodes f1...f28 by constantly supplying a signal inverted in level to the signal CP2 in FIG. 3 to the terminal C11 common to the common electrodes Ell...E15.

Even if any of
Each date from the 28th to the 28th is always displayed.

Regarding the display of the 29th, 30th, and 31st, terminal S5 in FIG. S6. Terminal Q2 in the circuit that supplies the signal to S7. Q3. Q4 are connected to terminals Q4 +Q1. By replacing Q2, display can be made according to each month.

Further, in the above embodiment, the signals supplied to the selection electrode and the common electrode are all at the same voltage, but the signal CP0. C.P.
2. In place of CP3, the signals CP; and C shown in FIG.
F2. CP'3, and the signals QP', . . . QP/l may be used in place of the signals QP1, . V', .

v'9. No. v'2.V'2.V'2.
vI4v'7. vQ, y/I, vQ, v;
Since the difference in the effective voltage values of , , and v'12 is large, crosstalk is difficult to occur, the contrast is large, and the response speed is fast and it can be used in a wide temperature range.

Furthermore, although the dates are arranged in a straight line in the above embodiment, the dates are not limited to this and may be arranged in a circle.

As detailed above, according to the present invention, a display element is provided corresponding to each number indicating the date, and the display elements corresponding to Sunday and the current day are displayed in different display modes. and makes it easier to read the current date.

In addition, the selection electrode corresponding to each date is divided into four and three small blocks, each small block is connected in a zigzag manner with four lead wires, and the common electrode corresponding to each small block is connected through the liquid crystal. If multiple types of signals are selectively supplied to each lead wire and each common electrode to perform display,
It requires fewer lead wires and is particularly effective when used in small liquid crystal display watches.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an embodiment of the present invention, Fig. 2 is a developed view of Fig. 1, and Fig. 3 is an example of signals supplied to the electrodes and signals applied to the liquid crystal. FIG. 4 is an electric circuit diagram showing an example of the drive device, FIGS. 5 and 6 are electric circuit diagrams showing the main parts of FIG. 4 in detail, and FIG. 7 is an electric circuit diagram showing an example of the drive device. FIG. 8 is an explanatory diagram showing the electrodes of another embodiment, and FIG. 9 is a signal diagram showing the signals supplied to the electrodes and the signals applied to the display element. FIG. 2 is an explanatory diagram showing another example of a signal. a, ~a31...display element, e1~e31...
...Selection electrode, 01-CIO...Common electrode, S1-S4...Lead wire.

Claims (1)

[Scope of Claims] 1. A calendar display device that is provided with a driving device that displays display elements corresponding to each number indicating a date, and displays the display elements corresponding to Sunday and the current day in different display modes. 2 Set selection electrodes corresponding to each number indicating the date. Divide each selection electrode into large blocks of 7 each, and divide each dog block into small blocks consisting of 4 and 3 selection electrodes. The small blocks are connected in a zigzag manner by four lead wires, and a common electrode corresponding to each small block is connected via the liquid crystal.The common electrode, liquid crystal, and selection electrode constitute a display element, and the lead wires and each common electrode A calendar display device equipped with a drive device that selectively supplies a plurality of types of signals to a display device and displays display elements corresponding to Sunday and the current day in different display modes.