JP2604352B2 - Image display device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an image display device having a map display function.

[Prior Art] In recent years, portable televisions such as liquid crystal televisions have become widespread.
On the other hand, a map display device for displaying a map has also been considered.
If there is a portable map display device, a sales person or a delivery person of a company can search for a place to visit using the portable map display device. If the function of the portable television is added to this portable map display device, the television can be conveniently viewed on the go.

[Problems to be Solved by the Invention] However, there is a problem that the usability is not good simply by combining the portable television and the portable map display device.

The present invention has been made in view of the above circumstances, and has as its object to provide an easy-to-use image display device that can display a map and can also watch a television.

Means for Solving the Problems In order to achieve the above object, the present invention provides an image display device for displaying video data from a television circuit on a display unit, wherein the case body of the image display device has a first body. A storage part and a second storage part are formed, and a control circuit and an interface circuit are built in the case main body together with the television circuit. The first storage part includes coupling means and is provided with a display part. A map memory for storing map data of an area larger than an area of a predetermined size is detachably mounted, and the connecting means electrically connects the map memory and the control circuit mechanically and via the interface circuit. The second storage unit stores a battery, and further designates an area of a predetermined size of a part of the map data stored in the map memory. Area specifying means to be displayed on the display unit, area moving means for moving an area of map data specified and displayed by the area specifying means, video data from the television circuit and specified by the area specifying means First display control means for selectively switching the map data of the area to be displayed on the display unit, and second display control means for storing a predetermined item and a predetermined area of the map data in association with each other. Wherein the area designating means designates the area of the predetermined size by designating a head address of the area of the predetermined size of the map data, and the second display control means comprises: By designating an item, the map data of the area stored in association with the item is read out and displayed on the display unit. There is provided an image display device.

[Embodiment of the Invention] Hereinafter, an example in which the present invention is applied to a liquid crystal television will be described in detail with reference to the drawings. First, the external configuration will be described with reference to FIG. 1 and FIG. In FIG.
Reference numeral 11 denotes a case main body. On the front surface of the case main body 11, a liquid crystal display panel 12 is provided on the left side, for example, and a keyboard 13 is provided on the right side. The keyboard 13 includes, for example, calculation keys 14 composed of numerical keys and function keys, alphabet keys 15, search keys 16, cursor keys 17, data registration keys IN, personal name registration keys NAME, telephone number registration keys TEL, and data read keys OUT. , Map readout key MAP, comparison table creation key
Has SET. The cursor keys 17 include “↑”, “↓”, and “←” for moving the cursor in the up, down, left, and right directions.
It has four keys of “→”. The keyboard 13 is provided with a sliding mode switch 18 for switching between a television display mode TV and a map display mode MAP, a channel up key 19a, and a channel down key 19b below the liquid crystal display panel 12. Further, a rod antenna 20 is provided on the upper part of the case main body 11. The base of the rod antenna 20 is rotatably mounted on the case main body 11.

On the back surface of the case body 11, a battery storage section 21 and a ROM pack mounting section 22 are provided as shown in FIG.
ROM pack 23 as map memory in OM pack mounting section 22
Is attached. In the opening of the ROM pack mounting section 22,
A cover 24 is provided to be freely opened and closed. In the ROM pack 23, a locking piece 25 is formed on one side, and a terminal section is formed on one side of the lower surface, that is, on the side on which the locking piece 25 is formed.
26 are provided. In addition, locking pieces 24a and 24b are formed at the tip of the lid 24. On the other hand, the ROM pack mounting portion 22 is provided with a contact portion 27 at the bottom corresponding to the terminal portion 26 of the ROM pack 23, and a locking portion 25 for locking the ROM pack 23 on one side. A slit 28 is provided. Further, in the ROM pack mounting portion 22, slits 29a and 29b for locking the locking pieces 24a and 24b of the lid 24 are provided above the slit 28, and guides for the lid 24 are provided on both sides of the opening. Grooves 30a and 30b are formed. Then
When mounting the ROM pack 23 on the ROM pack mounting section 22,
Insert the locking piece 25 into the slit 28 and connect the terminal 26 to the contact 27
Contact. Thereafter, the lid 24 is inserted and moved along the guide grooves 30a and 30b of the ROM pack mounting portion 22, and the locking pieces 24a and 24b are moved.
Is inserted into the slits 29a and 29b and fixed. The ROM pack 23 is purchased with a predetermined map written in advance and is mounted on the ROM pack mounting unit 22.

Next, the configuration of an electronic circuit provided in the case main body 11 will be described with reference to FIG. In the figure, reference numeral 31 denotes a TV circuit, which is a CP from a TV broadcast wave induced by the antenna 20.
According to the instruction of U32, a broadcast wave of a desired channel is selected and converted into an intermediate frequency, and processing such as amplification, video detection, synchronization separation, and audio detection is performed.The video signal is output to an A / D conversion circuit 33, and the The signal is output to a speaker (not shown). The A / D conversion circuit 33 converts the video signal sent from the TV circuit 31 into 4-bit digital video data,
Output to the liquid crystal drive circuit 34. This liquid crystal drive circuit 34 has a CP
Operation controlled by U32, TV display mode TV
Is specified, the video data from the A / D conversion circuit 33 is displayed on the liquid crystal display panel 12, and the map display mode MAP
Is specified, the map data transmitted from the CPU 32 via the display memory 35 is displayed on the liquid crystal display panel 12. In the display memory 35, an address of a certain area is designated by a window address given from the CPU 32 via the window address register 36.

In the present embodiment, a part of the wide area display information is displayed on the screen, and viewing each area of the display information by moving the display area is expressed as a window.

The CPU 32 is connected to a control ROM 37 and the keyboard 13 in FIG.
2 through the (interface) 38
M pack 23 is connected. In this ROM pack 23, for example, a map for each prefecture is written in advance, and the storage map is further stored in, for example, Nishitama-gun, Minato-ku,... As shown in FIG.
Etc., and these areas can be designated as a matrix by A1, B1,.

Further, a data memory 39 is connected to the CPU 32.
The data memory 39 stores, for example, the first data as shown in FIG.
The third storage area 39a, 39b, 39c, the first area 39a has the name of the other party (person name or company name) such as a customer, the second area 39b has its telephone number, and the third area 39c has Map division area corresponding to the other party's location,
Window addresses such as A-1, D-3, and B-2 in the figure (the coordinates of the upper left point of each area) are written.

Next, the operation of the above embodiment will be described. To receive TV broadcasts, use the mode switch 18 to set the TV display mode.
Select TV. When the television display mode TV is selected and designated by the mode switch 18, the CPU 32 gives an operation command to the TV circuit 31 to set the television receiving state, and the liquid crystal driving circuit 34
Is switched to the A / D conversion circuit 33 side. Further, the CPU 32 supplies a channel control signal to the TV circuit 31 in accordance with the operation of the channel up key 19a and the channel down key 19b. TV circuit
The 31 selects a designated channel in accordance with a channel control signal from the CPU 32, performs processing such as amplification and detection, extracts a video signal, and outputs the video signal to the A / D conversion circuit 33. The A / D conversion circuit 33 converts the video signal from the TV circuit 31 into 4-bit video data and outputs it to the liquid crystal drive circuit 34. The liquid crystal drive circuit 34 drives the liquid crystal display panel 12 according to the video data from the A / D conversion circuit 33, and displays a television image on its screen.

Next, the operation when the map function is used will be described. When the map function is used, predetermined data such as the name, telephone number, and window address of the other party are stored in the data memory 39 in advance. To store data in the data memory 39, the mode switch 18 is switched to the map display mode MAP. When the map display mode MAP is designated by the mode switch 18, the CPU 32 stops the operation of the TV circuit 31 and switches the liquid crystal drive circuit 34 to the display memory 35 side. In this state, the user first enters the data memory
A telephone number is registered in 39. In this case, a registration mode is designated by operating a telephone number registration key IN on the keyboard 13 as shown in FIG. 6 (a). Then, the person name to be registered by the alphabet key 15, for example, "A"
"O""K""I" (Aoki) is input, and then the personal name registration key NAME is operated. When the personal name registration key NAME is operated, the CPU 32 registers the personal name "AOKI" input at that time in the first area 39a of the data memory 39 as shown in FIG. Next, the user inputs a telephone number, for example, "123-4050" using the numeric keys, and then enters a telephone number registration key TEL.
Operate. When the telephone number registration key TEL is operated, the CPU 32 registers the telephone number entered at that time in the second area 39b of the data memory 39. Hereinafter, by repeating the same operation, the personal name (or company name) and the telephone number are sequentially registered in the data memory 39.

After the registration of the telephone number as described above, a comparison table showing the correspondence between the personal name or telephone number and the map is created in the data memory 39. In this case, FIG. 6 (b)
The user operates the comparison table creation key SET to specify the comparison table creation mode, as shown in (1), followed by the person names "A", "O", "K", and "I".
And then operate the person name registration key NAME. In this case, a search operation is performed in place of the input
The person name “AOKI” to be designated may be read out from the first area 39a of 39 and displayed on the liquid crystal display panel 12. In this state, a map area corresponding to the location, for example, "M""I"
"N""A""T""O" (Minato-ku) or "A"
Specify the area of "1" and then operate the comparison table creation key SET. When the area designation of Minato-ku or “A” or “1” is performed, the CPU 32 registers the corresponding window address A-1 in the third area 39c of the data memory 39.

After the comparison table is created in the data memory 39 as described above, if it is desired to confirm only the telephone number of the other party, the data read mode is operated by operating the data read key OUT as shown in FIG. 6 (c). I do. Next, after inputting the name of the other party, for example, "A", "O", "K", "I", the "search" key 16 is operated. With the above key operations, the CPU 32 stores the telephone number “123-405” for the personal name “AOKI” from the data memory 39.
"0" is read out to the display memory 35 and displayed on the liquid crystal display panel 12. When the user wants to search the contents stored in the data memory 39 by specifying the initials, for example, "A"
Then, the "search" key 16 is operated. At this time, by operating the "↑" and "↓" keys of the cursor keys 17, the contents stored in the data memory 39 can be searched sequentially.

On the other hand, when it is desired to display a map on the liquid crystal display panel 12, a ROM pack 23 in which a desired area is previously written is selected and mounted on the ROM pack mounting section 22, and the mode switch 1
8 is switched to the map display mode MAP side,
The map read key MAP is operated as shown in FIG.
By operating the map reading key MAP, a map reading mode is designated. In this state, the user
Use the alphabet key 15 and search key 16
An area desired to be displayed on the liquid crystal display panel 12 is designated from information stored in the M pack 23. Now, for example, when the ROM pack 23 storing the map information of Tokyo is mounted on the ROM pack mounting section 22, and a map of Nishitama-gun, Tokyo is to be displayed on the screen, as shown in FIG. 6 (d). After specifying "NISITAMA" (Nishitama) with alphabet key 15,
Alternatively, the search key 16 is operated after designating the map area “A” “1” in Nishitama-gun. The CPU 32 uses the search key 16
Is operated, the ROM pack 23 is searched based on the data input at that time, and the map data of Nishitama-gun is read out to the display memory 35. Further, the CPU 32 determines the amount of the window W1 that can be displayed on the liquid crystal display panel 12 with reference to the coordinates of the upper left point of the area A-1 in Nishitama-gun as shown in FIG.
Is output to the window address register 36. And the window
The map data of the area of the window W1 is read out from the display memory 35 to the liquid crystal drive circuit 34 according to the address data in accordance with the data held in the address register 36, and displayed on the liquid crystal display panel 12 as shown in FIG. As described above, a part of the map of Nishitama-gun is displayed on the liquid crystal display panel 12, but if the user wants to see another part, he operates the cursor key 17. When the cursor key 17 is operated, the CPU 32
The window W for the display memory 35 is moved accordingly, and another area is displayed on the liquid crystal display panel 12. Less than,
Similarly, an arbitrary area in Nishitama-gun can be displayed on the liquid crystal display panel 12 by operating the cursor key 17. In addition, by specifying another area by key operation, a map of an arbitrary area can be displayed on the liquid crystal display panel 12 in the same manner as the above case.

In the case of displaying a map of the place where the person works or resides by further specifying the name, in the above-mentioned map read mode, as shown in FIG. 6 (e), the person name such as "A""O"" After inputting "K" and "I", the "search" key 16 is operated. When the "search" key 16 is operated, the CPU 32 searches the data memory 39 based on the input data at that time, and the third area 39 for the personal name "AOKI".
Data stored in c, that is, map area data "A-1"
, And the map data of the area "A-1" is read from the ROM pack 23 and written into the display memory 35. Then CPU3
2 gives the address of the initial window W1 for the specified area "A-1" to the window address register 36, and reads the map data of the initial window W1 area from the display memory 35 to the liquid crystal drive circuit 34, as shown in FIG. It is displayed on the liquid crystal display panel 12 as shown. The map displayed on the liquid crystal display panel 12 can be arbitrarily moved by operating the cursor keys 17 to display other areas as described above.

In addition, in addition to the above-mentioned personal names, the map of the corresponding portion is automatically displayed on the liquid crystal display panel 12 based on the company name, the telephone number, and the like.
Can be displayed.

In the above embodiment, the map data of the designated area is read out of the map data stored in the ROM pack 23 and stored in the display memory 35. All the map data may be read and stored in the display memory 35.

Further, in the above embodiment, the ROM pack 23 is used as the information memory.
However, the present invention can be similarly implemented using, for example, an IC card, a magnetic tape, or the like.

[Effects of the Invention] As described above, according to the present invention, it is possible to watch a television or display a map with one device,
In addition, a desired area can be designated from a map of a wide area, a desired area can be searched by shifting a display area, and a wider area can be supported by replacing a map memory storing map data. be able to.

[Brief description of the drawings]

BRIEF DESCRIPTION OF THE DRAWINGS The drawings show an embodiment of the present invention, FIG. 1 is a front view showing an external configuration, FIG. 2 is a diagram showing a configuration of a ROM pack mounting portion provided on a back surface of a case body, and FIG. FIG. 4 is a block diagram showing a configuration of an electronic circuit, FIG. 4 is a diagram showing a storage configuration example of a ROM pack, FIG. 5 is a diagram showing an example of a comparison table stored in an information memory, and FIG. FIG. 7 is a diagram showing an example of key operation, and FIG. 7 is a diagram showing an example of display of map data read from a ROM pack. 11: Case body, 12: LCD panel, 13: Keyboard, 14: Calculation key, 15: Alphabet key, 16: Search key, 17: Cursor key, IN: Data registration key, NAME: Personal name registration key, TEL: Phone number registration key, OUT: Data reading key, MAP: Map reading key, SET: Comparison table creation key, 18: Mode switch, 19a: Channel up key, 19b Channel down key, 21 TV circuit, 22 ROM pack mounting part, 23 ROM pack, 24 lid, 31 TV circuit, 32
… CPU, 33… A / D conversion circuit, 34… Liquid crystal drive circuit.

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-59-142594 (JP, A) JP-A-60-88982 (JP, A) JP-A-60-66175 (JP, U) 40745 (JP, B2)

Claims (1)

(57) [Claims] 1. An image display device for displaying video data from a television circuit on a display unit, wherein a first storage portion and a second storage portion are formed in a case main body of the image display device. Inside, a control circuit and an interface circuit are built together with the television circuit, and the first storage unit includes a coupling unit and stores map data of an area larger than a predetermined size area of the display unit. A memory is detachably mounted, the coupling means mechanically and electrically detachably couples the map memory and the control circuit via the interface circuit, and wherein the second storage unit is a battery. Area designating means for designating an area of a predetermined size of a part of the map data stored in the map memory and displaying the area on the display unit; An area moving means for moving an area of map data designated and displayed by the rear designating means; and selectively switching between video data from the television circuit and map data of the area designated by the area designating means. A first display control means for displaying on a display unit; and a second display control means for storing a predetermined item and a predetermined area of the map data in association with each other. By specifying the head address of the area of the predetermined size in the map data, the area of the predetermined size is specified, and the second display control means responds to the item by specifying the stored item. An image display device which reads out map data of an area which is additionally stored and displays the map data on the display unit.