JPH0564226A - Hard copy device - Google Patents

Abstract

PURPOSE:To provide a device which is small in size and is easy to perform adjustments such as color balance, etc. CONSTITUTION:The whole of a device is formed of an upper side device 1 and a lower side device 2 and the upper side device 1 is mounted on the lower side device 2 so that the device 1 may be freely rotatable as shown by the arrow. No.3 is a film pack of an instant color film mounted on the lower side device 2. Further, No.11 is a white and black liquid crystal display provided on the upper side device 1 and a back light 12 is provided on the back side of this white and black liquid crystal display 11. No.21 is an erect unmagnified lens provided on the lower side device 2 and an instant color film 31 of the film pack 3 is provided on the lower side of this erect unmagnified lens 21 via a color filter 41.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hard copy device for printing an image signal on an instant color film.

[0002]

2. Description of the Related Art Hard copy devices have been implemented for printing video signals on instant color film. However, all of the conventional devices have a large shape,
The price was also expensive.

On the other hand, there has been proposed an apparatus that uses a liquid crystal display to reduce the price (Japanese Patent Laid-Open No. 60-60).
103791). However, with this device,
Since the flash light source is used as the light source for printing, the shape cannot be reduced in size. In addition, it is difficult to accurately adjust the amount of light with a flash light source, and it is not possible to easily adjust the color balance and the like.

[0004]

The problems to be solved are that the conventional apparatus does not have a small shape and the color balance and the like cannot be easily adjusted.

[0005]

According to the present invention, a black and white liquid crystal display 11 having a backlight 12 is provided, and an image on the black and white liquid crystal display 11 has an erecting equal-magnification lens 2.
1 is projected onto the instant color film 31 and a color filter 41 of a desired primary color is inserted between the erecting equal-magnification lens 21 and the instant color film 31 and synchronized with the insertion of the color filter 41. In this hard copy device, a video signal of a desired color is supplied to the black and white liquid crystal display 11 and the backlight 12 is turned on.

[0006]

According to this, by using the black and white liquid crystal display and the erecting equal-magnification lens, the size of the device can be made small, and the lighting of the backlight can be controlled to easily adjust the color balance and the like. it can.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT FIG. 1 shows the overall construction of the apparatus. In this figure, the entire device is formed of an upper device 1 and a lower device 2, and the upper device 1 is rotatably attached to the lower device 2 as indicated by an arrow. Further, 3 is a film pack of an instant color film mounted on the lower device 2.

Further, 11 is a black and white liquid crystal display provided in the upper device 1, and a backlight 12 described later is provided on the back side of the black and white liquid crystal display 11. Reference numeral 21 denotes an erecting equal-magnification lens provided in the lower device 2. The instant color film 31 of the film pack 3 is provided below the erecting equal-magnification lens 21 via a color filter 41 described later. Be done.

FIG. 2 is an exploded perspective view showing a specific example of the upper device 1. In this figure, black and white liquid crystal display 1
A backlight 12 is provided on the back side of 1. Further, 13 is an upper case, 14 is a printed circuit board, 15 is a backlight inverter unit, 16 is a printed circuit board 15, a black and white liquid crystal display 11 and a lower device 2 which will be described later.
A flexible substrate for connecting to the circuit of (1), and 17 is an outer frame of the monochrome liquid crystal display 11. Reference numeral 18 is a print switch.

FIG. 3 is an exploded perspective view showing a specific example of the lower device 2. In this figure, the hold unit 4 of the film pack 3 is provided below the erecting equal-magnification lens 21. Further, 22 is a lower case frame, and 23 is an erecting equal-magnification lens 2
1 unit, 24 is a lower case. Reference numeral 25 is a memory switch.

Further, in the hold unit 4, a film pack 3 (not shown) is inserted and fixed in the unit 4 through an opening on the right side. As a result, the erecting equal-magnification lens 2
The image on the black-and-white liquid crystal display 11 which is installed so as to face 1 is formed on the surface of the instant color film 31 in the film pack 3 in a size of 1: 1.

Reference numeral 42 is a film-like color filter 41.
And the color filter 41 is mounted as shown in FIG. 4A. Color filter 4 here
As shown in B of the same figure, 1 is sequentially provided with color filters of primary colors of red, green and blue and a light shielding film. 43 and 44 are sensors for detecting the position of the color filter and the light shielding film.

Further, in the hold unit 4, 45
Is a film feeding motor, and a gear 46 is rotated by this motor 45. The gear 48 of the film feeding mechanism 47 is rotated by meshing with the gear 46,
By this gear 48, a film pull-out roller bar 49
Is rotated. Further, 50 is a film feeding hook, which is moved in the film feeding direction by the gear teeth 51 meshing with the gear of the motor 45, and is returned to the initial position by the return spring 52 when it reaches a predetermined position.

Reference numeral 53 is a motor for moving the color filter 41. The motor 53 rotates the filter guide rod 54. A similar guide rod is also provided on the opposite side of the hold unit 4.

Further, FIG. 5 is a block diagram of an electric circuit. In this figure, reference numeral 60 denotes a video input terminal to which a composite video signal is supplied. The composite video signal from the video input terminal 60 is supplied to the decoder 61, and red (R), green (G), and blue are supplied. The three primary color signals of (B) are formed. These three primary color signals (R, G, B) are A /
Memory 6 through D conversion circuits 62R, 62G and 62B
It is supplied to 3R, 63G, and 63B. This memory 63
The three primary color signals (R, G, B) from R, 63G, 63B are supplied to the respective terminals of the signal selection circuit 65 through the D / A conversion circuits 64R, 64G, 64B.

The three primary color signals (R, G, B) from the memories 63R, 63G, 63B are supplied to the encoder 66 to form a black and white video signal, and the black and white video signal is supplied to the signal selection circuit 65. To be done. Then, normally, the signal from the encoder 66 is selected by the signal selection circuit 65, whereby a black and white video signal corresponding to the video signal supplied to the video input terminal 60 is taken out. It is supplied to the black and white liquid crystal display 11 and displayed. 67 is a black and white liquid crystal display 11
Is a drive pulse generation unit of.

When the memory switch 25 is pressed in this state, this operation signal is supplied to the memory management circuit 68, and the 3 from the decoder 61 at this time is supplied.
Primary color signals (R, G, B) are stored in memories 63R, 63G, 6
Stored in 3B. As a result, a still image is displayed on the monochrome liquid crystal display 11.

Further in this state, the upper device 1 and the lower device 2
Are closed and the print switch 18 is pressed. As a result, this operation signal is transferred to the memory management circuit 6
8 and the sequence controller circuit 69, the reading directions of the memories 63R, 63G, and 63B are horizontally reversed, and the signal selection circuit 65 causes the memory 63 to be read.
The signals from R, 63G and 63B are sequentially selected.

The signals from the position detecting sensors 43 and 44 are the color filter position and the initial position (light-shielding film).
Sequence controller circuit 6 through detection circuit 70
9 is supplied. Then, in response to a control signal from the sequence controller circuit 69, a drive circuit 71 for the backlight 12, a drive circuit 72 for the film feeding motor 45, and a drive circuit 73 for the color filter moving motor 53.
Is controlled.

That is, in this apparatus, when a composite video signal as shown in A of FIG. 6 is supplied to the video input terminal 60, the decoder 61 outputs three primary color signals (R, G, B) are taken out. Further, these three primary color signals (R, G, B) are sent to the encoder 66.
To form a black and white video signal, and the black and white video signal is supplied to the black and white liquid crystal display 11 for display.

When the memory switch 25 is pressed when the desired image is displayed, the three primary color signals (R, G, B) of one frame at that time are stored in the memory 63.
The images are stored in R, 63G, and 63B, and this image is displayed as a still image on the monochrome liquid crystal display 11. If this image is not what you want, use the memory switch 25 again.
The memory may be erased by pressing.

Further, when the still image is displayed, the upper device 1 and the lower device 2 are closed and the print switch 18 is pressed, whereby the three primary color signals (R, G,
B) is horizontally flipped as shown in C of FIG. This is to correct the left-right reversal in advance when an image on the black and white liquid crystal display 11 is formed on the surface of the instant color film 31 and printed.

An operation signal generated by pressing the print switch 18 is formed as shown in A of FIG.
On the other hand, the signal selection circuit 65 is controlled as shown by B in FIG. In the figure, (100) is a monochrome video signal from the encoder 66, (000) is a red primary color signal (R) from the memory 63R, (001) is a green primary color signal (G) from the memory 63G, (010). ) Is memory 63B
The state where the blue primary color signal (B) from
11) indicates no connection.

Further, C in the figure shows the lighting of the backlight 12 (high potential period), D in the figure drives the film feeding motor 45 (high potential period), and E in the figure shows the color filter moving motor 53. Drive (high potential period) is shown respectively. Therefore, first, the color filter 41 is moved from the initial position (light-shielding film), and the erecting equal-magnification lens 21
The red primary color signal (R) is displayed on the black and white liquid crystal display 11 with the red primary color filter (R) interposed between the instant color film 31 and the instant color film 31, and the backlight 12 is turned on. As a result, the red image is projected and printed on the instant color film 31. When this printing is completed, the backlight 12 is turned off.

When this printing is completed, the color filter 41 is moved again, and the green primary color filter (G) is interposed between the erecting equal-magnification lens 21 and the instant color film 31. The primary color signal (G) is displayed on the black and white liquid crystal display 11, and the backlight 12 is turned on. As a result, a green image is projected on the instant color film 31 and printed. When this printing is completed, the backlight 12 is turned off.

Further, when this printing is completed, the color filter 41 is moved again, and the blue primary color filter (B) is interposed between the erecting equal-magnification lens 21 and the instant color film 31. The primary color signal (B) is displayed on the black and white liquid crystal display 11 and the backlight 12 is displayed.
Is lit. As a result, the blue image is projected and printed on the instant color film 31. When this printing is completed, the backlight 12 is turned off.

As a result, the red, green, and blue images are projected and printed on the instant color film 31, and the video signal is printed on the instant color film 31. Further, after this printing is completed, the instant color film 31 is taken out of the apparatus by driving the feeding motor 45.

Thus, according to the above-mentioned device, the device can be made compact by using the black and white liquid crystal display 11 and the erecting equal-magnification lens 21, and the backlight 1 can be used.
By controlling the lighting of No. 2, it is possible to easily adjust the color balance and the like.

That is, in the above-described apparatus, the time for printing each color can be controlled by controlling the lighting of the backlight 12, and thus the adjustment of the color balance and the like can be easily performed.

Further, in the above-mentioned device, since the images on the black and white liquid crystal display 11 and the instant color film 31 correspond to each other in a size of 1: 1, a relatively large screen can be obtained as the black and white liquid crystal display 11. Therefore, it is good as a monitor display in normal times, and the state of the image to be printed can be accurately grasped in advance.

Furthermore, by equipping the above-mentioned device with a standardized communication system such as LANC, the drive of the VTR or the like as a video signal source can be remotely controlled from this device. According to this, the operation for obtaining a hard copy can be performed extremely smoothly.

[0032]

According to the present invention, by using a black and white liquid crystal display and an erecting equal-magnification lens, the shape of the device can be made small, and the lighting of the backlight can be controlled to easily adjust the color balance and the like. Now you can do it.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of an example of a hard copy device according to the present invention.

FIG. 2 is an exploded perspective view showing a specific example of the upper device 1.

FIG. 3 is an exploded perspective view showing a specific example of the lower device 2.

FIG. 4 is a diagram for explaining the hold unit 4;

FIG. 5 is a block diagram of the electric circuit.

FIG. 6 is a waveform diagram for the explanation.

FIG. 7 is a timing chart diagram for explaining the explanation.

[Explanation of symbols]

1 Upper Device 2 Lower Device 3 Film Pack of Instant Color Film Mounted on Lower Device 11 Black & White Liquid Crystal Display Provided on Upper Device 1 Backlight 21 Erect Equal Ratio Lens Provided on Lower Device 2 31 Instant Color film 41 color filter

Claims (1)

[Claims] 1. A black-and-white liquid crystal display having a backlight is provided, and an image of the black-and-white liquid crystal display is projected onto an instant color film through an erecting equal-magnification lens. A color filter of a desired primary color is inserted between them, and a video signal of a desired color is supplied to the black and white liquid crystal display in synchronization with the insertion of the color filter, and the backlight is turned on. Hard copy device.