JPH01237592A - Data projector device - Google Patents

Abstract

PURPOSE:To eliminate the need of a peripheral equipment of a personal computer, etc., by providing a receiving part for receiving screen data from a remote control unit provided with a memory card in which the screen data has been recorded, on an LCD monitor unit. CONSTITUTION:Screen data is stored in advance in an attachable/detachable memory card 3 which has been contained in a remote control unit 1. Therefore, the screen data which has been designated by a key pad 4 is brought to FM modulation in a data converting circuit 6, and transmitted as an FM modulating signal from a transmitting antenna 8 through a transmitting circuit 7. This FM modulating signal is received through a receiving antenna 9 by a receiving circuit 10 which has been contained in an LCD monitor unit 2, and converted to a digital signal by a decoder 11. Subsequently, it is recorded temporarily in a buffer memory 12, and also, the screen data is sent to an LCD display panel 13 simultaneously, and an image is displayed on an LCD. In such a way, a peripheral equipment of a personal computer, etc., becomes unnecessary, and the whole device can be miniaturized.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention is an OHP (overhead projector) that uses an LCD monitor unit equipped with a transmissive liquid crystal display panel.
The present invention relates to a data projector device that is set on a screen and enlarges and projects an LCD display screen onto the screen.

(Prior Art) Various devices have been proposed in the past that allow a large number of people to view the screen at the same time, such as in meetings and seminars, but the simplest and commonly used device is the 0HP.
(overhead projector) system.

Creating an OHP screen is relatively simple, such as converting handwritten characters and drawings onto a transparent film, placing the film on the OHP, and enlarging and projecting it, but creating the screen is quite complicated.

Recently, it has been proposed to develop a "computer projector device" in which a transmissive LCD is mounted on the OHP instead of the OHP film, and the LCD display screen is enlarged and projected.

FIG. 2 shows a schematic block diagram of a conventional computer projector device.

In the figure, 20 is an LCD monitor system consisting of an LCD unit 21 and a light [22], 23 is a CRT display 24, an arithmetic control section 25, and a data memory 26.
A computer system consisting of a keyboard and a keyboard 27.

Desired characters and drawings are displayed on the CRT display 24 using special software, and the screen data is stored in the data memory 2.
6 and simultaneously transmits the same screen data to the LCD uni-node 21. In addition, if screen data has already been recorded in the data memory 26, this screen data can be monitored on the CRT display 24 and simultaneously recorded on the LC.
The same screen data is sent to the D unit 21, and the screen data is sequentially switched by operating the keyboard 27.

(Problem to be Solved by the Invention) However, in the conventional computer projector device described above, the conventional OHP system cannot be used without peripheral devices such as a personal computer and a floppy disk.
There has been a tendency for the devices as a whole to become larger, making them less convenient for users to use.

(Means for Solving the Problems) The present invention has been made in view of the above-mentioned circumstances, and is an OHP device that uses an LCD monitor unit equipped with a transmissive liquid crystal display panel.
(overward throat projector) and set it on the L
A data projector device configured to enlarge and project a CD display screen onto a screen, comprising a memory card that records OHP screen data, and a remote control unit that modulates and transmits the screen data of the memory card. , and a receiving section provided on the LCD monitor unit side to receive screen data from the remote control unit and display it on the LCD.

(Function) A remote control unit equipped with a memory card that records screen data is provided, and a receiving section that receives screen data from the remote control unit is connected to an LCD.
Provided on the monitor unit.

This allows you to omit peripheral devices such as a computer,
The entire device can be made smaller.

(Example) Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows a schematic block diagram of a data projector device of the present invention.

In the figure, ■ is a remote control unit, 2 is a remote control unit,
is an LCD monitor unit. The remote control unit 1 includes a removable memory card 3, a keypad 4, a CPU 5, a data conversion circuit 6, a transmitting circuit 7, a transmitting antenna 8, etc., and the LCD monitor unit 2 includes a receiving antenna 9, a receiving circuit 10, It is composed of a decoder 11, a buffer memory 12, an LCD display panel 13, and the like.

Screen data is stored in advance in a removable memory card 3 built into a remote control unit 1, and a program for a CPU 5 is created so that the screen data can be called up arbitrarily by operating a keypad 4. This results in
The screen data specified by the keypad 4 is FM modulated in the data conversion circuit 6, and is transmitted as an FM modulated signal from the transmitting antenna 8 through the transmitting circuit 7. This FM
The modulated signal is received by a receiving circuit 10 built into the LCD monitor unit 2 through a receiving antenna 9, and is converted into a digital signal by a decoder 11. The information is then temporarily recorded in the buffer memory 12 and simultaneously displayed on the LCD.
Screen data is sent to the display panel 13, and an image is displayed on the LCD.

Note that these data reading and LCD screen display controls are all centrally managed by the CPU 5 built into the remote control unit 1, and are controlled by the user by operating the keypad 4 attached to the remote control unit 1. It is assumed that the software program in the CPU 5 is configured so that the display screen can be selected arbitrarily. Furthermore, if the data capacity of the memory card 3 is smaller than the screen data, it is sufficient to prepare a plurality of memory cards corresponding to the number of screen data.

(Effects of the Invention) As explained above, according to the data projector device of the present invention, peripheral devices such as a personal computer are not required.
The device as a whole can be miniaturized and does not require complicated operations, making it extremely easy to use.

[Brief explanation of the drawing]

FIG. 1 is a schematic block diagram of a data projector device of the present invention, and FIG. 2 is a schematic block diagram of a conventional computer projector device. ■...Remote control unit 2...LCD
Monitor unit 3...Memory card 4...Keypad 5...
・CPU 6...Data conversion circuit 7...
- Transmitting circuit 8... Transmitting antenna 9... Receiving antenna 10... Receiving circuit 11... Decoder 12... Sofa memory 13... LCD
Display panel 1!2 diagram

Claims (1)

[Claims] 1) In a data projector device in which an LCD monitor unit equipped with a transmissive liquid crystal display panel is set on an OHP (overhead projector) and the LCD display screen is enlarged and projected onto the screen. , a remote control unit that is equipped with a memory card that records OHP screen data, and that modulates and transmits the screen data of the memory card by FM; and a remote control unit that is provided on the LCD monitor unit side and that transmits the screen data from the remote control unit. A data projector device comprising: a receiving section that receives and displays the received information on an LCD.