JP3200739B2 - Display device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a display device having a capability of displaying two-digit numbers.

[Prior Art] In order to set the date and time in a clock circuit, at least two digits must be displayed on the display screen. There is no problem if all settable numeric values can be displayed in the year, month, day, hour, minute, and second.However, because the display screen is limited, it is common to use a screen with a small number of display digits for multiple types of settings. It is.

[Problems to be Solved by the Invention] For example, in a camera using a normal film, it is generally sufficient to display a two-digit number so that the number of shots can be recognized. However, if a camera is provided with a clock or calendar function and a display unit having many digits is added, the size of the apparatus is increased and the cost is increased. Therefore,
It is conceivable to use both the number indicating the recorded image and the number indicating the date or time. For example, if the number of display digits is only two digits, it is not clear whether the current setting (or change) is year, month, day, hour, minute, or second. It simply gets confused and eventually goes unnoticed, meaningless functionality.

Therefore, the present invention, even if the number of display digits is not sufficient, whether the display represents a number indicating a recorded image,
Another object of the invention is to provide a display device which clearly shows which of date, time, year, month, day, hour, minute, etc. is displayed, and which one is being set and operated. I do.

[Means for Solving the Problems] A display device according to the present invention includes a two-digit number display means capable of displaying the number of recorded images, and a date and time symbol indicating a display state of date and time information including at least one of a date and a time. When the date and time information is displayed by the symbol display means to be displayed and the numeral display means, the date and time symbol is displayed. When the date and time information is set, the numerical value input as the date and time information is displayed by the numeral display means. The date and time symbol is blinked and displayed, and when the number of recorded images is displayed on the numeral display means, the display control means stops displaying the date and time symbol.

[Operation] According to the above means, even if the display device does not have a sufficient number of display digits, the display indicates a number indicating a recorded image, or the date, time, year, month, day, It is possible to easily recognize which one of hours and minutes is being displayed, and which one is being set.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.
10 is a photographing lens, 12 is a mechanical shutter, 14 is a drive circuit of the shutter 12, 16 is an image sensor, 18 is a process circuit that forms a luminance signal and a color difference signal from the output of the image sensor 16, and 20 is an output from the process circuit 18. A recording circuit for performing recording processing such as modulation on the luminance signal and the chrominance signal; 22, a switch for switching between recording, erasing, and reproduction; 24, a video floppy as a recording medium; 26, a motor for rotating the floppy 24; A head, 30 is an erasing circuit for generating an erasing signal, 32 is a reproducing circuit for performing a reproducing process such as demodulation on the reproduced signal by the magnetic head 28 and outputting it in a video signal format, and 34 is a video output terminal.

36 is a liquid crystal display device for displaying the state of the system and various data, and 38 is a system control circuit for controlling the whole system, and has a clock circuit inside. Reference numeral 40 denotes a switch group for inputting a predetermined instruction to the system control circuit 38. A first release switch 42 is closed in the first stroke of the shutter release operation, and instructs to enter a shooting preparation operation. The second release switch 44 is closed in the second stroke of the shutter release to instruct a photographing operation.
In addition, a recording switch 46, a reproduction switch 48, an up switch 50 for instructing track up, a down switch 52 for instructing track down, a mode for switching a display mode of the display device 36 and a mode for setting a mode. A switch 54, a BLC switch 56 for performing backlight correction, a date-related DATE switch 58, and a flash switch 60 for turning on / off the flash device. In this embodiment, the up switch 50 sets the year, month, day, hour, and minute values of the clock to one.
It also has a function to increase only.

Reference numeral 70 denotes a motor drive circuit that drives the motor 26.

FIG. 2 shows display elements in the liquid crystal display device 36.
100 is displayed when the light emission of the flash device is forcibly prohibited, and is turned off when the on / off of the light emission is automatically controlled according to the external light amount. 102 is displayed in the normal shooting mode. 104 is displayed at the time of interval shooting or interval playback. 106 is displayed at the time of self-timer shooting. 108 is displayed in the continuous shooting mode. 110 is displayed when distinguishing dates (Y: year, M: month, D: day). 112
Flashes when the watch battery needs to be replaced. 114 flashes when the main power battery needs to be replaced. 116 is displayed in the erase mode. Reference numeral 118 is displayed at the same time as the display of reference numeral 116 in the all track erase mode. 120 is the time (H:
Displayed when distinguishing between hours and minutes. Reference numeral 122 indicates character numbers such as date, time, and track number according to the situation. The character number 120 is displayed by two 7-segment display elements.

The operation of FIG. 1 will be schematically described. At the time of recording, the shutter 12 is operated by a release operation, and an electric signal from the image sensor 16 is converted into a luminance signal and a color difference signal by the process circuit 18. The recording circuit 20 outputs to the output of the process circuit 18.
A recording process such as FM modulation is performed, and the output is applied to a magnetic head 28 via a switch 22 and recorded on a magnetic disk 24. At the time of reproduction, the reproduction output of the magnetic head 28 is applied to the reproduction circuit 32 through the switch 22, and the reproduction circuit 32 performs reproduction processing such as demodulation, and outputs a reproduced video signal to the output terminal.
Output to 34.

Next, a method for setting the internal clock in the system control circuit 38 will be described with reference to FIGS. First,
By turning on the DATE switch 58 (S1), the memory change flag FLG1 in the system control circuit 38 is set to 0 (S1).
2) The "Y" symbol 110 indicating the year is displayed on the display device 36, and the year is displayed by the character number 122 (S3). In this state,
When the switch 50 is operated (S4), the flag FLG1 is set to 1 (S5), the "Y" symbol 110 flashes, and the year is incremented by one.
The increased year is displayed by the character number 122 (S6). Each time the up switch 50 is operated, the year is increased by one.

When the DATE switch 58 is operated (S7), the "Y" display on the display device 36 is turned off (S8). If the flag FLG1 is not 0 (S9), the "M" symbol 110 indicating the month is displayed on the display device 36. While blinking, the month is displayed with the character number 122 (S20), and the flag is displayed.
If FLG1 is 0, the "M" symbol 110 indicating the month is lit on the display device 36, and the month is displayed with the character number 122 (S1).
1). Thereafter, as in the case of the year, each time the up switch 50 is operated, the month is incremented by one (S12, 13, 14), and the operation of the DATE switch 58 shifts to the day setting (S15, 16, 17, 17). 1
8,19).

Thereafter, the day, hour, and minute are sequentially set (S20-4
0) Finally, if the flag FLG1 is 1 (S41), the year,
Since there is a change in the month, day, hour or minute, the second is reset to 0 (S42), and if the flag FLG1 is 0, the display of the character number 122 is started at the start of this routine. Return to the previous display (S43).

As can be understood from the above, in the present embodiment, Y,
M and D indicate that the year, month and day are set, respectively, and H and M of symbol 120 indicate that the hour and minute are set, respectively. The change target is cyclically designated by the DATE switch 58, and the numerical value is increased by the up switch 50.

[Effects of the Invention] As can be easily understood from the above description, according to the present invention, even if the display does not have a sufficient number of display digits, does the display indicate a number indicating a recorded image? Alternatively, it is possible to easily recognize which of the date and time, such as year, month, day, hour, and minute, is displayed, and which one is being set and operated.

[Brief description of the drawings]

FIG. 1 is a block diagram of the configuration of an embodiment of the present invention, FIG. 2 is an explanatory diagram of the entire display contents of the display device 36, and FIGS. 3, 4, and 5 are operation flowcharts of the present embodiment. . 10: photographing lens, 12: mechanical shutter, 14: shutter drive circuit, 16: image sensor, 18: process circuit, 20: recording circuit, 22:
Switch, 24: floppy, 26: motor, 28: magnetic head, 30: erase circuit, 32: reproduction circuit, 34: video output terminal, 3
6: liquid crystal display device, 38: system control circuit, 40: switch group, 42: first release switch, 44: second release switch, 46: recording switch, 48: reproduction switch, 50: up switch, 52 : Down switch, 54: Mode switch, 56: BLC switch, 58: DATE switch, 60: Flash switch

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G04G 1/00 G04G 5/04 G04G 9/00

Claims (3)

(57) [Claims] 1. A two-digit number display means capable of displaying the number of recorded images; a symbol display means for displaying a date and time symbol indicating a display state of date and time information including at least one of a date and a time; When displaying the date and time information,
When the date and time symbol is displayed and the date and time information is set, the numeric value input as the date and time information is displayed on the numeric display means, while the date and time symbol flashes, and the number of recorded images is displayed on the numeric display means. A display control means for stopping display of the date and time symbol when the display is performed by the display device. 2. The display device according to claim 1, wherein the date and time information includes date information, and the date information includes year, month, and day. 3. The display device according to claim 1, wherein the date and time information includes time information, and the time information includes hours, minutes, and seconds.