JPH02288517A - Selective call reception - Google Patents

Abstract

PURPOSE:To easily confirm the changeover of a display pattern by inverting the contrast of at least part of the display pattern, displaying the character and switching the display pattern to the succeeding display pattern. CONSTITUTION:When a switch of an operation section 3 is operated to change over the display pattern of a liquid crystal display element 8, a switching signal from the operating section 3 is decoded by a decoder 4 and outputted to a control section 5, interrupt is applied to the control section 5 and the control section 5 enters a pattern changeover routine. The control section 5 writes a message data being the result of inverting the contrast of the message of the final line displayed on a liquid crystal display element 8 into a driver 7 to display the message data a prescribed time and reads the message data of the display pattern displayed succeedingly from a RAM 6 and writes it in the driver 7 and the display pattern of the liquid crystal display element 8 is changed over. Thus, the changeover of the display pattern of a display section is easily confirmed.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a selective call receiving device using radio waves.

Conventional technology Fig. 3 (a) to (C) and Fig. 4 (a), (t
)) is an explanatory diagram showing a method of switching the display screen of the display unit in a conventional selective call receiving device.

First, to explain how to switch the display screen of the display section, when displaying one line of characters as a message horizontally on the display screen as shown in FIG. 3(a), as shown in FIG. 3(b),
As shown in , there is a scroll method in which the display screen is switched by scrolling one character horizontally on the display screen, and a third method.
As shown in Figure (C), there is a page switching method in which the entire display screen is switched.

When switching the display screen of the display unit in this way, as shown in FIG. 3, if the characters are in one line, the characters can be easily read by either the scrolling method or the page switching method.

However, as shown in Figure 4, when the characters displayed on the display screen of the display unit span multiple lines, the characters are
Fig. 4(a)

As shown in (b), by switching the display screen using a page switching method, characters can be easily read.

The problem to be solved by the invention is that when the characters displayed on the display screen of the display section span multiple lines, it is not possible to switch the display screen using the page switching method, which causes the characters on the display screen to instantly switch over multiple lines. Become.

Therefore, there was a problem in that it was difficult to confirm the switching of the display screen.

The present invention is intended to solve such conventional problems, and an object of the present invention is to provide a selective call receiving device that can easily confirm that the display screen of the display unit is switched. .

Means for Solving the Problems In order to achieve the above object, the present invention provides a method for changing the display screen displayed on the display section when switching the display screen of the display section based on a switching signal for switching the display screen from the operation section. A control section is provided for controlling the driver to switch the display screen of the display section to the next display screen after displaying characters by inverting the shading of at least a portion of the display section.

Therefore, according to the present invention, when the display screen on the display section is switched by operating the switch on the operation section, the shading of at least a portion of the display screen displayed on the display section is reversed, and then the display screen is switched. The display screen changes and characters are displayed normally.

Embodiment FIG. 1 is a block diagram showing the configuration of a selective call receiving device according to an embodiment of the present invention, and FIGS. 2(a) and 2(b) are explanatory diagrams showing switching of the display screen of the display unit. .

In FIG. 1, ■ is an antenna for receiving radio waves, 2 is a receiving circuit that demodulates the signal received by antenna 1, and 3 is for switching the display screen of liquid crystal display element 8 as a display section, which will be described later. 4 is a decoder, and the decoder 4 decodes and outputs the demodulated signal output from the receiving circuit 2 and the switching signal output from the operation unit 3.

Reference numeral 5 denotes a control unit that controls each part as described later; 6 a memory (RAM) that stores character data (message data) under the control of the control unit 5; and 7 a liquid crystal display element under the control of the control unit 5. A driver 8 drives a driver 7, and a liquid crystal display element 8 serves as a display section that displays characters (messages) in a dot matrix based on the output of the driver 7.

Next, the operation of the above embodiment will be explained.

In the above embodiment, the received signal received by the antenna l is demodulated by the receiving circuit 2, decoded by the decoder 4, and then
The message data in the signal is output to the control section 5, and the control section 5 writes the message data to the driver 7 based on the message data, so that the message is displayed on the liquid crystal display element 8.

Message data that is not written to the driver 7 is stored in the RIAM 6.

With the message being displayed on the liquid crystal display element 8 in this manner, when the switch on the operation section 3 is operated to change the display screen of the liquid crystal display element 8, the switching signal from the operation section 3 is transmitted to the decoder. 4 and output to the control section 5, an interrupt is generated to the control section 5, and the control section 5 enters the screen switching routine.

When the control unit 5 enters the screen switching routine, the control unit 5 displays message data in which the shading of the last line of the message displayed on the liquid crystal display element 8 is inverted, as shown in FIG. 2(a). After writing the message to the driver 7 and displaying the message for a certain period of time, the message data for the next display screen to be displayed is read from the RAM 6 and written to the driver 7, and as shown in FIG. 2(b), 1. The display screen of the liquid crystal display element 8 is switched.

Note that in the above embodiment, a case where a message of multiple lines is displayed on the display section was explained, but the message displayed on the display section may be of one line, and the message may be displayed in one character or one line.
It is also possible to scroll line by line.

In addition, when switching the display screen on the display unit, the shading of one line on the display screen is inverted and displayed.
The shading of the entire display screen may be inverted.

Effects of the Invention As is clear from the above embodiments, the present invention has the following advantages: When switching the display screen of the display section, after inverting the shading of at least a portion of the display screen displayed on the display section and displaying characters, Since the display screen of the display unit is configured to be switched to the next display screen, there is an effect that it is possible to easily confirm that the display screen is switched.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of a selective call receiving device according to an embodiment of the present invention, FIGS. ) ~
4(C), FIGS. 4(a) and 4(b) are explanatory diagrams showing a switching method for switching the display screen of the display unit in a conventional selective call receiving device. DESCRIPTION OF SYMBOLS 1... Antenna, 2... Receiving circuit, 3... Operating unit, 4... Decoder, 5... Control unit, 6... Memory (RAM), 7... Driver, 8... ...Display section (liquid crystal display element). Name of agent: Patent attorney Shigetaka Awano and 1 other person 2nd
Diagram (a)

Claims (1)

[Claims] an operating section having a switch for switching a display screen of a display section that displays characters in a dot matrix based on driving of a driver, and switching the display screen based on a switching signal from the operating section that switches the display screen;
a control unit that controls the driver to switch the display screen of the display unit to the next display screen after inverting the shading of at least a portion of the display screen displayed on the display unit and displaying the characters; Selective call receiving device.