JPH0337016Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a calendar display device.

Conventionally, so-called perpetual calendar display devices have been attempted using liquid crystals and the like. At that time, due to requirements such as display balance and ease of viewing, it is desired that Sunday be placed at the left end and that there is little horizontal movement. However, when the date numerals are arranged in this manner, a large number of date numerals are required, which inevitably results in a large number of lead wires, which is a problem in practical use.

This invention provides a calendar display device with fewer lead wires for display electrodes.

Next, an example of this invention will be described.

In FIG. 1, four series of date numerals are arranged in eight columns. Seven days are displayed above. These date numbers and the seven days of the year are displayed using a liquid crystal or the like. The wiring of segment electrodes for display is shown by dotted lines in the vertical direction in the drawing. Date digits 1 to 28
The six columns in the middle, excluding the left end lead wire s2 and the right end lead wire s3, are further connected together with a common lead wire s1. From date digit 29
For up to 31, each lead wire s4, s5, s
6, withdrawing at s7. The wiring of the common electrode is shown as a solid line, and the lead wires c1 and c for the seven days
2, and the date numerals are connected by lead lines c3, c4, c5, and c6 for each series. By having such a lead wire configuration, the segment electrodes are s1, s2, s3, s4, s
5, s6, s7, c for common electrode
It can be done with 6 lead wires: 1, c2, c3, c4, c5, and c6, that is, 13 lead wires in total.
By selecting and driving the necessary lead wires, any calendar display can be made. The lead wire s1 of the segment electrode is always selected and in the ON state. Lead wires s2, s3
Either one is selected. s4, s5, s
6 and s7 are selected when it is necessary to display the 29th, 30th, and 31st, respectively. For the common electrode, select either c1 or c2 for the day of the week display, and select c3 or c2 for the date number.
Select one of 4, c5, and c6.
When displayed on this calendar display device, left and right movement is in one column.

FIG. 2 shows another embodiment, in which three series of date numerals are arranged in nine columns. For segment electrodes, the middle 5 that is always displayed
Regarding the columns, date numbers from 1 to 28 are connected by a common lead line s8, the two columns on the left are connected by the lead lines s9, s10, and the two columns on the right are connected by the lead line s.
11 and s12, respectively. For date numbers 29 to 31, each lead line s13, s
14, s15, and s16. The common electrode wiring is lead wires c7 and c for the seven days.
8 and c9, and the date numerals are connected by common lead lines c10, c11, and c12 for each series. In this case, there are 15 lead wires. Display driving is performed in the same manner as in the previous example.

According to the calendar display device according to the present invention having the above configuration, the number of lead wires of display electrodes is small, so the configuration is simple and driving is easy.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a plan view showing a display segment together with a lead wire structure, and FIG. 2 is a plan view of another embodiment. S1-S7...Lead wire, C1-C6...Lead wire, S8-S16...Lead wire, C7-C12
……Lead.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) Multiple series of date digits are arranged in rows and columns, and date digits from 1 to 28 in the column that is always displayed
A calendar display device in which the segment electrodes for the date numbers up to are wired with a common lead wire for all series, and the common electrode is wired for the date numbers 1 to 31 for each series using a common lead wire. (2) Arrange the 4 series of date numbers in 8 columns, starting from 1 in the 6 columns of date numbers that are always displayed.
The scope of the utility model registration claim is that the segment electrodes with date numbers up to 28 are wired with a common lead wire throughout all series, and the common electrode is wired with a common lead wire with date numbers 1 to 31 for each series. The calendar display device according to item 1. (3) Three series of date numerals are arranged in 9 columns, and from 1 in the 5th column of date numerals that are always displayed.
Segment electrodes with date numbers up to 28 are wired with a common lead wire throughout all series, and the common electrode is wired with a common lead wire with date numbers 1 through 31 for each series. The calendar display device according to item 1.