JPH024094A - Recorder - Google Patents

Abstract

PURPOSE:To shorten correcting time, and to remove distortion by sending a picture signal to a transmissive monochromatic liquid crystal display device by a control device, and photographing a picture by light from a light source for transmission. CONSTITUTION:The title device consists of the transmissive monochromatic liquid crystal display device 1, the control device 2 to transfer the picture signal of a diagram, etc., to the liquid crystal display device 1, a photographing device 3 to record the picture displayed on the liquid crystal display device 1 through a lens and the transmitting light source 4 for emphasizing the contrast of light and darkness of the picture so as to expose sufficiently photosensitive material charged in the photographing device 3. The picture signal 5 to be transferred to the liquid crystal display device 1 is controlled, and the transmitting light source 4 is lighted by a transmitting light source control signal 6. Then, the picture displayed on the liquid crystal display device 1 is exposed upon the photosensitive material by a photographing device control signal 7, and a color slide, etc., consisting of the diagram, etc., is produced.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a recording device used for producing color slides such as charts and tables.

[Prior art] Conventionally, when creating slides with figures, tables, and characters (hereinafter referred to as figures, tables, etc.), an original drawing was created by lettering or phototypesetting, and the slide was created by taking a photograph of the original drawing. Was.

(Problems to be Solved by the Invention) In such conventional technology, in the case of color slides, an original drawing is created by lettering or phototypesetting, a negative film approximately the same size as the original drawing is made from the original drawing, and then a negative film is printed on the negative film. A lot of production time and money was required to attach desired color sheets to each diagram (lines, areas, etc.) and then photograph them on slide film while projecting light from the back side. Furthermore, when making corrections, it was necessary to repeat the same manufacturing process from the beginning.

A relatively simple method is to create an original drawing with color lettering and photograph it on color slide film. However, this required a considerable amount of production time and expense because the color reproduction was poor and corrections had to be made from the original drawings.

On the other hand, as another method for creating slides such as charts, a recording device using a monochrome CRT display uses C
A color filter that can be selected by an electric motor or the like is placed between the RT display and the camera, and in order to display charts, etc. on the CRT, and record such charts, etc. in color, the desired color filter is selected and the camera is used. I was filming. In this method, the distortion of the CRT display is recorded,
It is necessary to adjust the brightness of the CRT for each color according to the color sensitivity of the photosensitive material, and to control the camera's exposure time and the amount of light transmitted through the film. Since there are mechanically movable parts such as a motor and an electric motor for driving a filter, there are problems such as a reduction in reliability and a shortened lifespan. In addition, color CRT
In a recording device that applies this, each color develops simultaneously, so
A special photosensitive material is required that matches the light intensity of each color with the light density characteristics of the photosensitive material, and also matches the light wavelength of each color with the light wavelength sensitivity characteristics of the photosensitive material, which increases running costs and increases pixel density. There were drawbacks such as lower performance compared to monochrome CRTs.

The purpose of this invention is to eliminate the need for manual work such as lettering when producing color slides such as diagrams, pasting of phototypesetting single-color sheets, etc., making corrections easy, reducing correction time, eliminating distortion, and providing reliability. The objective is to provide a recording device with excellent performance and longevity.

(Means for Solving the Problems) A recording device according to the present invention includes a transmissive monochrome liquid crystal display device, a transmissive light source, a control device for transferring image data to the transmissive monochrome liquid crystal display device, and a transmissive monochrome liquid crystal display device. It consists of a photographing device that records images displayed on a display device.

In addition, when combining and recording multiple images to be displayed, use a transmission light source that can supply multiple lights of different colors, and use a control device that can supply multiple colors of light in synchronization with the display of each image. Use one that allows you to select one and control the irradiation time.

Furthermore, a control circuit may be provided to transfer digital RGB image signals one color at a time and perform photographing.

Alternatively, it may be a control circuit that stores digital RGB image signals in a memory for each of R, G, and B, and then transfers the digital RGB image signals one color at a time to perform photographing.

[Function] In the present invention, the control device sends an image signal to the transmission type monochrome liquid crystal display device, and the photographing device photographs the signal using light from the transmission light source.

Furthermore, when a plurality of images are combined and recorded, the color of the light source for transmission can be selected in synchronization with the display of the images, and the photographing device can photograph and record this.

Further, using digital RGB image signals, images are taken one color at a time under the control of a control circuit.

Furthermore, RGB image signals are stored in the memory, and images are taken one color at a time to record the desired information.

〔Example〕

An embodiment of this invention is shown in FIG. In this example,
A transmissive monochrome liquid crystal display device (hereinafter referred to as a vehicle liquid crystal display device) 1, a control device 2 that transfers image signals such as charts to the liquid crystal display device 1, and a control device 2 that transmits images displayed on the liquid crystal display device 1 through a lens. It consists of a photographing device 3 for recording images, and a transmission light source 4 for increasing the contrast of images and sufficiently exposing the photosensitive material loaded in the photographing device 3. Liquid crystal display device 1
, the transmission light source 4 is turned on using the transmission light source control signal 6, and the image displayed on the liquid crystal display device 1 is exposed to the photosensitive material using the photographing device control signal 7. Create color slides, etc. consisting of diagrams, tables, etc.

FIG. 2(a) shows a specific example of selectively irradiating light of different colors onto the photographing device 3. The light sources of multiple colors are selectively emitted, and the photographing device 3
A configuration is shown in which the light emission time of the transmission light source 4 is controlled in order to properly expose the photosensitive material loaded in the camera.

As shown in FIG. 2(b), the operation timing is as shown in FIG.
3 selectively causes the transmission light source 4 to emit light and controls the light emission time. After that, change the image signal to display a different chart, etc., and after the display is sufficiently stable, transmit the transmission light source control signals 61 and 62 in the same manner as above. .63 selectively causes the transmission light source 4 to emit light and controls the light emission time, and by repeating this, a plurality of images displayed on the liquid crystal display device 1 are synthesized and recorded. In this case, the diagrams and the like displayed by changing the image signal 5 may have different color compositions or characters.

In this embodiment, the transmission light source control signal 61.62.6
The combination of 3 allows recording in 8 colors.

Note that the transmission light source 4 uses a transmission light source control signal 61.
,62.63 directly selects the desired color, but
There may be a combination of a white light source and each color filter,
In that case, the color filters may be located anywhere as long as they can supply the required light to the liquid crystal display device 1.

FIGS. 3(a) and 3(b) show another embodiment of the present invention. Control for selecting an image signal sent from the control device 2 to the liquid crystal display device 1, generating a transmission light source control signal 6 to be sent to the transmission light source 4, and generating a photographing device control signal 7 to be sent to the photographing device 3. The circuit 10 will be mainly explained. A case will be illustrated in which the image signal sent from the control device 2 to the liquid crystal display device 1 is a digital RGB image signal. Among the image-related signals 50 sent from the control device 2, timing signals 53 such as horizontal synchronization, vertical synchronization, clock, etc. are sent as they are to the liquid crystal display device 1, and the timing signals 53 such as horizontal synchronization, vertical synchronization, clock, etc. The selection unit 101 increments a counter 55, which is a 2-bit counter with a decoder, using the signal selection clock 54, and selects the output from the counter 55 and the digital RGB image signal 51 in the image-related signal 50.
, and selects one color image signal, which is transferred to the liquid crystal display device 1 as a binary image signal 52.

Furthermore, after transmitting the selected image signal for one to several frames, the light source 4 for transmitting the light source 4 selectively causes the light source corresponding to the color of the selected image signal to emit light, or transmitting the light source control signal 61 for controlling the light emission time. The control circuit 10 transfers the data to the control circuit 10.

First signal selection clock 54 and output Q of counter 55
Flip-flop 56 is set with the AND output of 1, and 4
th signal selection clock 54 and the output Q4 of the counter 55
The flip-flop 56 is reset by the AND output of , and the output Q of the flip-flop 56 is sent to the photographing device 3 as the photographing device control signal 7. By manually inputting the signal selection clock 54 to the control circuit 10, the control circuit 1
0, the other two colors of the digital RGB image signal 1'
Similarly, the image signals are selected and sent out, and the light source control signals 62 and 63 are generated and sent out.

Note that the counter 55 has a configuration in which a decoder is added to a 2-bit counter, and the fourth signal selection clock 54
and reset the flip-flop 56 at
Although the configuration has been described in which the 2-bit counter is also reset, a 4-bit shift register configuration may also be used. The signal selection clock 54 may be sent from the control device 2 or may be manually generated.

In this embodiment, one color image signal is selected from the RGB image signals, and the logical OR is performed with the other unselected image signals.
The selected image signal is transferred to the liquid crystal display device 1 as the image signal 52 of the value, but after logical product without taking the logical sum, the selected image signal is transferred to the liquid crystal display device 1, and the unselected image signals of the other two colors are Non-selected state (H level or “L”).

level) may be transferred to the liquid crystal display device 1 as is.

In this embodiment, a general-purpose personal computer is considered as the control device 2, and the control circuit 10 is provided outside the computer, but a control circuit having similar functions may be provided inside the control device 2. Further, in the above description, the case where the image signal is a digital RGB image signal is exemplified, but it may be any one or more separated digital image signals.

Roughly speaking, in this embodiment, as the light source corresponding to the color of the selected image signal, any light source may be used, such as a light source of the same color, a light source of a complementary color, or a light source that takes into account the coloring characteristics of the photosensitive material.

FIGS. 4(a) and 4(b) show still another embodiment of the present invention. An image signal sent from the control device 2 to the liquid crystal display device 1 is selected, and a transmission light source control signal 6 (light source selection signal 6°1, light emission time control signal 602) is sent to the transmission light source 4.
) and transmits the photographing device control signal 7 to the photographing device 3 will be mainly explained. A case will be illustrated in which the image signal sent from the control device 2 to the liquid crystal display device 1 is an analog gradation RGB image signal.

One of the analog gradation RGB image signals 501 among the image-related signals 500 sent from the control device 2 is selected by the write control section 111 in the control circuit 11 shown in FIG. 4(b). , analog/digital conversion,
One frame is stored in the first memory 112, and then similar conversion is sequentially performed on other analog image signals.
The data is stored in the second memory 113 and the third memory 114. Fourth
In one configuration example of the write control unit 111 shown in FIG.
The counter 116 is operated by the overflow signal from the address generation section 115, and the selector 117 selects one of the analog image signals 501 or 61 based on the output of the counter, and sends the selected signal to the analog/digital conversion section 118. Thereafter, the readout control unit 119 in the control circuit 11 reads out one frame of data of the lower digits of each pixel of one frame of digital data (image data) in the first memory 112 once or several times.
The image is displayed by transferring it to the liquid crystal display device as a small image signal 502, and the control circuit 11 performs the following operations during the image display period using the small image signal 502. a light source selection signal 6 that causes the control circuit 11 to selectively emit light from a light source corresponding to the color of the original analog image signal;
01 and a light emission time control signal 602 that controls the light emission time corresponding to the digit of the digital data to the transmission light source 4. Next, the read control section 119 in the control circuit 11
Accordingly, one frame of digital data (image data) of one frame of digital data (image data) from the lower to the upper digit of each pixel is read out several times in the same memory 112 and transferred to the liquid crystal display device 1 as only two image signals. A light emission time control signal 602 for controlling the light emission time corresponding to the data digit is transferred to the transmission light source 4 and is sequentially repeated from the lower digit to the higher digit in the same memory 112.

Furthermore, the second. Similarly to the first memory 112, the third memories 113 and 114 transfer digital data to the liquid crystal display device 1, and transmit the light source selection signal 601.
and a light emission time control signal 602 are transferred to the transmission light source 4.

In one configuration example of the read control section 119 shown in FIG.
. The selector 124 selects the output from the 124 and sends a binary image signal 502 to the liquid crystal display device 1. Roughly speaking, the output of the shift register 121 is manually input to the encoder 125, and the output is used as the light emission time control signal 602, and the output of the counter 123 is used as the light source selection signal 601 to be used as the light source 4 for transmission.
Transfer to.

Counters 116 and 123 shown in one embodiment of FIG. 4(b)
is a 2-bit counter with a decoder added, similar to the counter 55 in FIG. 3(b), and the encoder 12
5 may have a configuration in which the encoder includes a pulse width conversion circuit. The photographing snow making control signal 7 sent to the photographing device 3 can be constructed by replacing the counter 55 with the counter 123 and the signal selection clock 54 with the overflow signal of the 121st shift register in the same manner as in FIG. 3(b). Although not shown,
Similar to FIG. 3(b), this can be generated using an AND gate and a flip-flop. In one configuration example of the readout control unit 119, a two-stage selector configuration is illustrated in which the output from the selector 122 is selected by the selector 124, but a configuration in which the outputs from the selector 122 are selected by the selector 124 is also possible. Furthermore, the address is sent from the address generation unit 120 to each memory 112, 113, and 114,
Although the case is illustrated in which outputs from a plurality of selectors 122 are selected by operating the counter 123, the memory to be read is selected by the output of the counter 123 and the image is sent through the selector 122 without setting all the memories to the read operation state. A signal 502 may also be sent.

In the configuration example of the control circuit 11 shown in FIG. 4(b), the address increment clocks of the address generators 115 and 120, the increment clock of the shift register 121, and the signals sent to each memory (not shown) The memory start signal, write/read mode signal, etc. are generated by the timing signal generator 12.
Generated from 6. In particular, timing signals 503 such as horizontal synchronization, vertical synchronization, and clock in the image-related signals 500 sent from the control device 2 are
．． Needless to say, this must be synchronized with the timing of transferring the digital data from the third memories 112 to 114 to the liquid crystal display device 1.

In this embodiment, the digital data read from the memory is selected by the selector 124 and transferred to the liquid crystal display device 1 as the image signal 502, but the other selected image signals are also in a non-selected state (H" level or "L" level).゛゛Level remains the night crystal display.

It may also be transferred to the ray device 1.

Furthermore, in the series of processes in which the analog gradation RGB image signal 501 is digitally converted and stored in the memories 112 to 114, a method of sequentially processing one analog image signal at a time has been described, but all RGB analog image signals may be processed in parallel.

In this embodiment, a general-purpose personal computer is used as the control device 2, and the control circuit 11 is provided externally, but a control circuit having the same function may be provided internally.

Further, although the image signal is an analog gradation RGB image signal 501, the number of RGB gradations is not limited, and any one or more separate analog image signals may be used.

In this embodiment, any light source may be used as the light source corresponding to the color of the light analog image signal, such as a light source of the same color, a complementary color light source, or a light source that takes into consideration the coloring characteristics of the photosensitive material.

In each of the above embodiments, the liquid crystal of the liquid crystal display device 1 is an STN liquid crystal display with poor memory properties, an active TFT/DIODE liquid crystal display, etc.; In this case, after the same diagram, etc. is displayed in multiple frames using the above-mentioned image signal, and the display is sufficiently stabilized, the transmission light source is selectively emitted by the transmission light source control signal 6. - Since images such as charts and tables can be stably held with a small number of frames, the above-mentioned signals can be transmitted at an early stage if they are transferred later.

The photosensitive materials used in the photographing device 3 of the recording apparatus of the present invention include color slide negative films, monochrome slide negative films with emphasis on gradation,
Positive film and instant film can be applied.

Next, a specific example will be described.

The recording device shown in FIG. 3 was manufactured with the following configuration. The liquid crystal display device 1 was a transmission type electronic OHP panel (400×640 pixels) using a liquid crystal panel equipped with a thin film transistor. The control device 2 was a personal computer (NEC PC-9801VX), and its RGB output was used as the image signal 51. The photographing device 3 is a 35mm camera with a macro lens (Canon A-1 camera), and the transmission light source 4 is a combination of a cold cathode tube for emitting three primary colors (manufactured by Stanley Electric) and a color filter to emit red, green, and blue light. The three primary colors can be emitted independently. As a general-purpose figure creation program, Japanese word processor software (manufactured by Just System Co., Ltd., - Abe, Hanako) was used, and a multicolor screen in graphic mode was used for coloring. As a photoreceptor, color positive film (Fujifilm%, l5O10
0) is used to display each of the red, green, and blue signal screens on the liquid crystal display device 1 as a negative mode screen, and also causes the cold cathode tubes of each color of the transmission light source 4 to emit light, so that the three primary colors are superimposed. They were exposed together. As a result, the produced slide film formed clearly colored characters and graphic images on a black screen. In addition, text/figure corrections and color changes on the screen were easily possible using only keyboard input.

〔Effect of the invention〕

As explained above, the recording device according to claim (1) of the present invention includes a transmissive monochrome liquid crystal display device, a transmissive light source, and a control device that transfers image data to the transmissive monochrome liquid crystal display device. Since it is equipped with a photographing device that records images displayed on a transmissive monochrome liquid crystal display device, it is possible to automatically create color slides such as charts and tables easily and quickly, and compared to conventional manual creation. It can be done cheaply.

A general-purpose personal computer is used as a control device for the recording apparatus of the present invention, and a small control circuit is used to select an image signal suitable for the image signal and timing signal, select a light source for a transmission light source, control the light emission time of the light source for transmission, etc. By adding this, color charts and the like created with a wide variety of general-purpose chart creation programs can be used as they are, making it possible to realize a low-cost recording device.

In addition, by applying control circuits that perform image signal selection, transmission light source selection, and light emission time control to various general-purpose personal computers, it is possible to operate color charts, etc., perform color separation, and code conversion to make them compatible with general-purpose chart creation programs. There is no need to develop a dedicated program to do this, and there are no software development costs.

Furthermore, since the original data is stored in a personal computer, corrections to color charts, etc. can be easily accomplished in a short period of time.

Furthermore, since a transmission type monochrome liquid crystal display device is used, color slides such as charts and tables can be produced with less distortion than when a CRT is used.

In addition, since a transmissive monochrome liquid crystal display device and a transmissive light source are used, the display device has color C.
Disadvantages when applying RT are the mismatch between the light wavelength of each emitted color of the CRT and the light wavelength sensitivity characteristics of the photosensitive material, and the mismatch between the light intensity of each emitted color and the light density characteristics of the photosensitive material. Shifts in color balance and deterioration of color development can be prevented. Furthermore, a decrease in pixel density, etc. can be prevented.

Furthermore, since the invention described in claim (2) uses a transmissive monochrome liquid crystal display device and a color transmissive light source, in addition to the above-mentioned effects, there are also drawbacks when a monochrome CRT is applied to the display device. It is possible to prevent a decrease in shutter life due to frequent opening and closing operations of the camera shutter, decrease in reliability and life due to the presence of mechanically moving parts such as an electric motor for driving a color filter, and occurrence of operational noise.

Furthermore, the invention according to claim (3) provides a simple circuit (
(Signal selection and circuit for selectively emitting color light sources) eliminates the need to create special software. Furthermore, since the image signal of a color chart displayed using commercially available software is displayed on a monochrome liquid crystal display, a distorted image can be realized, and any color can be expressed by controlling the color of the light source and the light emission time. And R,G.

Since the B signal is digitally recorded, it is possible to record even the color gradation.

Furthermore, the invention described in claim (4) is defined in claim (3).
In addition to the effects of the invention described in , since the exposure points (pixels) do not differ depending on the color, it is possible to realize a composite gradation color by overlapping RGB colors without reducing the resolution.

Furthermore, since the light source of the monochrome liquid crystal display is controlled digitally, the amount of exposure can be controlled accurately, and therefore intermediate colors can be faithfully reproduced. Furthermore, the image signal applied to the general-purpose interface can be used as is.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram showing one embodiment of the present invention, and FIG. 2 (a
), (1)) are block diagrams and operation timing diagrams showing other embodiments of the present invention, and FIGS. 3(a) and 3(b) are block diagrams and control circuit diagrams showing still other embodiments of the present invention. The circuit diagrams in FIGS. 4(a) and 4(b) are a configuration diagram and a circuit diagram of a control circuit showing still another embodiment of the present invention. In the figure, 1 is a liquid crystal display device, 2 is a control device, 3 is a photographing device, 4 is a transmission light source, 5 is an image signal, 6 is a transmission light source control signal, 7 is a photographing device control signal, 10 is a control circuit, 50 is an image related signal, 51 is a digital RGB image signal, 52 is a binary image signal, 53 is a timing signal, 5
4 is a signal selection clock, 61, 62, 63 are transmission light source control signals, 500 is an image related signal, 501 is an analog gradation RGB image signal, 502 is a binary image signal, 503 is a timing signal, 601 is a light source selection A signal 602 is a light emission time control signal. Figure 1 (a) (b) Figure 61.62.63 L! General Light J Rinban Gomyago Figure 3

Claims (4)

[Claims] (1) A transmissive monochrome liquid crystal display device, a transmissive light source, a control device that transfers image data to the transmissive monochrome liquid crystal display device, and a photographing device that records images displayed on the transmissive monochrome liquid crystal display device. A recording device comprising: (2) a transmissive monochrome liquid crystal display device; a transmissive light source that supplies a plurality of lights of different colors as input light for combining and recording a plurality of images displayed on the transmissive monochrome liquid crystal display device; consisting of a control device that selects the plurality of lights of different colors in synchronization with the display of each image and controls the irradiation time; and a photographing device that records the images displayed on the transmissive monochrome liquid crystal display device. A recording device characterized by: (3) Select an image signal for each color from the digital RGB image signals sent from the control device to the transmissive monochrome liquid crystal display device, transfer it to the transmissive monochrome liquid crystal display device, and send the image signal to the transmissive light source. A signal for controlling the light source corresponding to the color is transferred, and image signals of the other two colors of the digital RGB image signals are selected and transferred to the transmissive monochrome display device in the same manner as described above, 3. The recording apparatus according to claim 1, further comprising a control circuit for transferring a light source control signal to the transmission light source. (4) RGB from the analog gradation RGB image signal sent from the control device to the transmissive monochrome liquid crystal display device
One frame of each analog image signal is selected, analog/digital converted, and stored in a first memory, a second memory, and a third memory, respectively, and then one of the lower digits is extracted from the first memory. A frame's worth of digital data is read once or several times and transferred as a binary image signal to the transmissive monochrome liquid crystal display device for image display, and during the image display period using the binary image signal, the transmissive light source is A signal for selecting a light source corresponding to the color of the original analog image signal and a signal for controlling the light emitting time corresponding to the digit of the digital data are transferred to the digital data, and the signal is sequentially transferred from the lower digit to the upper digit in the same memory. Similarly, the digital data is transferred to the transmissive monochrome liquid crystal display device, the light source selection signal and the light emission time control signal are transferred to the transmissive light source, and the second and third memories are also transferred to the first memory. Claim 1 or 2, further comprising a control circuit for transmitting digital data to the transmissive monochrome liquid crystal display device and a light source selection signal and a light emission time control signal to the transmissive light source, as in the case of (1) or (1).
2) The recording device according to item 2).