JPH07234453A - Image recorder - Google Patents

Abstract

PURPOSE:To obtain a bright color image by a miniaturized color image recorder. CONSTITUTION:An optical means 5 capable of moving along the screen of a color liquid crystal display panel 1 is provided. On the upper side of the optical means 5, the photosensitive surface of a photosensitive material 6 housed in an instant film bag 12 is located and on the other surface side of the liquid crystal display panel, a light source for back lighting 13 is provided as well. A light shielding curtain 7 capable of integrally moving with the optical means 5 is provided between the liquid crystal display panel 1 and the photosensitive material 6, not to expose it with light from the light source 13. An optical control means 11 is interposed between the optical means 5 and the photosensitive material 6 and the image scanned by the optical means 5 is turned into a bright image on the photosensitive material 6 by an exposure in such a manner that the luminescent colors of each adjacent picture elements are superimposed on gaps among picture elements formed on a display screen by the optical control means 11. Thus, the darkening of the whole of a picture caused by the gap part being a black matrix is prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image recording device.

[0002]

2. Description of the Related Art As a first example of a portable copying machine in the related art, a film setting section for mounting an instant film and a document setting section for setting a manuscript are arranged to face each other. There is a structure in which a converging optical transmission member is movably arranged between a document and a light-shielding curtain which shields the film surface and the original surface except the portion of the optical transmission member. 56-5339
0). Since this copying apparatus has a structure in which the optical transmission body moves between the original and the instant film which are opposed to each other, the copying apparatus is remarkably thinner than the conventional image forming apparatus using a lens. Further, the present applicant has adopted an optical means (lot lens array) for forming an image of the original surface on an instant film surface in an upright equal magnification, instead of the above-mentioned convergent optical transmission body, and attaching / detaching the film, etc. There have been proposed some image recording apparatuses which facilitate the above-mentioned operation method (for example, JP-A-3-192242). Each of the copying apparatuses according to the present embodiment has a configuration in which a hard copy can be obtained by positioning a display screen such as a CRT on the scanning surface.

As a second example, as an example of an apparatus for obtaining a color hard copy from a video signal, for example, JP-A-1-201640 and JP-A-4-23805.
There is one disclosed in Japanese Patent No. Specifically, filters of three colors of red, blue, and green are sequentially switched and arranged on the front surface of a black-and-white liquid crystal panel for displaying an image by pixels in a dot matrix, and the color of the selected filter is selected. The process of outputting the image signal of the color corresponding to the above to the display screen and exposing the projected image on the photosensitive recording medium through the lens is performed on the same photosensitive recording medium for the three color lights of red, blue and green. To form a color image.

[0004]

Among the above-mentioned conventional examples, the first example is to obtain a monochrome (black and white) image and is not colorized, so that it completely meets the present needs. There is a problem that you can not. Further, in the second example, three color exposures are required to form one color image, and further, it takes time to switch the color filters during this time, so that a lot of time is required to form one image. It was Further, since the mechanically movable portion for switching the filter and the filter are used, there is a problem that the configuration becomes large.

To solve these problems, red, blue,
There is a problem that only a dark image can be obtained even if the display of the display screen for color display is exposed as it is on the photosensitive member by the additive color mixture of the green dot matrix pixels.

The reason why only such a dark image can be obtained is as follows. For example, in a color liquid crystal panel in which pixels are arranged in a dot matrix, by displaying adjacent pixels in red, blue, and green at the same level, it is possible that the entire portion of this pixel looks white due to the resolution of human eyes. It is well known. Then, on the display screen, this white brightness can be adjusted by controlling the light emission amount of the pixel itself. That is, it was possible to control the brightness of colors by controlling the light amount of the backlight.

However, in the case where the pixel itself does not emit light, for example, in the case of a recording material in which pixels emitting red, blue and green are directly recorded on a color film, the brightness of the color can be adjusted by the backlight as described above. Disappear.
For example, in the case where white color is desired to be output, each pixel on the recording material has only a predetermined wavelength component among the wavelengths forming white color. The brightness is lower than that of the white background paper on which an image is recorded, that is, the area where the entire surface has red, blue, and green wavelength components from the beginning, and in principle 1/3 that of the white background.
The brightness is as follows, and since there is a black matrix portion between each pixel, only a dark gray image can be obtained.

An object of the present invention is to provide a compact image recording apparatus which can obtain a bright color image by superimposing and exposing the light emission colors of the pixels adjacent to the gap between the pixels.

[0009]

In order to achieve the above object, the image recording apparatus of the present invention includes a color display panel for performing color display by additive color mixing, and a color display panel facing one surface of the color display panel. The photosensitive material that is provided, the optical means that is moved in parallel with the color display panel via the driving means so as to form an image on the color display panel on the photosensitive material, and the optical means that moves integrally with the optical means. And a light-shielding means for preventing the photosensitive material from being exposed by unnecessary light in the surroundings, and the emission color of each of these pixels is overlapped at least between the two adjacent pixels of the color display panel. And an optical control means for exposing the photosensitive material to light.

[0010]

By adopting the above-mentioned means, an optical means that is moved in parallel to the display panel is provided between the color display panel and a photosensitive material provided so as to face the color display panel. Since the image is formed by exposing and forming an image on the photosensitive material, the distance between the display panel and the photosensitive material is reduced, and the device is downsized.

Since the optical control means is configured to expose the photosensitive material by superimposing the emission color of this pixel on the interval between the adjacent pixels of the display panel, the black matrix portion which darkens the display screen. Is brightly exposed on the photosensitive material, resulting in a brighter overall image.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1, a color liquid crystal display panel 1 forming a color display panel is horizontally provided via a support base 3 fixed in a lower case 2. The color liquid crystal display panel 1 uses, for example, a TFT liquid crystal panel or a ferroelectric liquid crystal panel, and arranges respective pixels corresponding to the three primary colors of light in a dot matrix in a desired order and shields light between the respective pixels. It has a display screen on which a black matrix is formed as a part, and performs color display by the additive color mixture of the three primary colors of this light.

As shown in FIG. 2, the display portion 1a of the color liquid crystal display panel 1 includes a red (R) pixel 1b and a blue (B) pixel.
Pixels 1c, green (G) pixels 1d and black matrix 1e are formed in a matrix. In this example, red, blue, and green color filters are provided for each pixel, and red, blue, and green are displayed according to the colors of the filters.

Referring back to FIG. 1, the lower case 2 is provided with an upper case 4 in the form of a stack lid. Upper case 4
A window portion 4a is provided in the ceiling portion at a position facing the screen of the color liquid crystal display panel 1 so that a photosensitive surface of a photosensitive material 6 described later and the color liquid crystal display panel 1 can face each other.
Mounting members 4b and 4c for supporting a carrier (not shown) so as to be capable of reciprocating are provided on the left and right sides of the upper case 4, respectively.

Optical means 5 is mounted on a carrier (not shown) so as to be movable in parallel along the display screen of the color liquid crystal display panel 1. The optical means 5 is composed of a fixing member 5a and a SELFOC lens array 5b formed by aligning a large number of SELFOC lenses. The SELFOC lens array 5b reads the image on the color liquid crystal display panel 1, and the photosensitive material 6 provided in parallel with the panel screen.
The image is formed at the same magnification as. Since the SELFOC lens array 5b is provided on the fixing member 5a side by side in the direction orthogonal to the traveling direction of the optical means, the optical means 5 moves from one end to the other end of the color liquid crystal display panel 1 to cover the entire screen. Can be scanned.

On both sides of the fixing member 5a of the optical means 5,
Each end of the light-shielding curtain 7, 7 is fixed. This shading curtain 7,
Reference numeral 7 acts as a light-shielding unit that prevents unnecessary exposure of the photosensitive material 6 due to light from the light source 13 which will be described later from the surroundings. The optical means 5 and the light shielding means 7, 7 can be moved integrally via a timing belt (not shown).

Mounting member 4 provided in the upper case 4
A motor 8 which constitutes a driving means for the optical means 5 and the light shielding means 7 is provided at b. The rotation of the motor 8 can drive the winding rollers 9 and 10 for the carrier and the light-shielding curtain via the timing belt. When moving the optical means 5 from the right to the left in the drawing, the light shielding means 7 can be wound around the rollers by rotating the rollers 9 and 10 in the counterclockwise direction. In this case, since the light-shielding curtain 7 wound around the take-up roller 10 provided on the right side of the optical means 5 is sent out, the light-shielding curtain is always the color liquid crystal display panel 1.
It is possible to block light between the photosensitive material 6 and the photosensitive material 6. When the optical means 5 moves from the left to the right in the drawing, the take-up rollers 9 and 10 are rotated clockwise this time. Blackout curtain 7
Move integrally with the optical means 5 to move the display panel 1 and the photosensitive material 6
It is possible to completely block the light of the light source 13 and the external light, which will be described later, since the space between the light source and the light source is partitioned.

Optical control means 11 is provided on the upper surface of the upper case 4 and at a position facing the color liquid crystal display panel 1. The optical control means 11 employs a diffraction grating here. The diffraction grating 11 has a function of brightening an image by overlapping the emission colors of these pixels at least at intervals between two adjacent pixels of the color liquid crystal display panel 1 so that the photosensitive material 6 can be exposed. .

The photosensitive material 6 is the instant film back 1
By adopting an instant film housed in 2, the camera back is placed on the upper case 4 so as to face the optical control means 11 at a predetermined interval. In the instant film bag 12, a developing means (not shown) and a film feeding mechanism (not shown) that automatically develop when the instant film is taken out are incorporated.

On the other surface side of the display surface of the color liquid crystal display panel 1, a light source 13 serving as a backlight of the color liquid crystal display panel is provided. A fluorescent lamp and a light guide plate are used as the light source 13.

Next, the operation will be described. Color liquid crystal display panel When a desired color display is being performed on the display screen of the panel 1, the backlight light source 13 emits light by operating a recording start switch (not shown) and the display screen of the color liquid crystal display panel 1 is displayed. Brighten. At this point, the optical means 5 is in a standby state at either of the home positions 4d and 4e provided on both sides of the upper case 4, so that the light source 13
Light is completely shielded, and the photosensitive material 6 is ready for exposure. When the color display device is a moving image, the desired screen is frozen to a still image and then scanning is started.

Next, the motor 8 starts the movement of the optical means 5 via a carrier (not shown), and the images of the display surface of the color liquid crystal display panel 1 brightened by the light source 13 are successively read by the optical means. The read image passes through the diffraction grating 11 and the SELFOC lens array 5b.
Then, an image is formed on the photosensitive material 6.

As each image is transmitted through the diffraction grating 11, as shown in FIG. 3, the light information of the adjacent pixels, that is, the emission color of the pixel is displayed in the portion 1e of the black matrix between the pixels 1b to 1d in the image. It appears as a virtual image (r, g, d in the figure). In other words, with respect to one pixel, the virtual image appears in the surrounding black matrix portion.
In this way, the three primary colors of light overlap each other on the black matrix, so that the portion of the black matrix becomes bright and an image is formed and exposed on the photosensitive material 6, and a latent image is formed there.

Next, when an operation of taking out the instant film which is the photosensitive material 6 from the instant film back 12 is performed, the recording paper on which the color image is developed by the developing means built in the instant film back 12 is fed to the film. It is sent out of the instant bag via the means. The image displayed on the film is
The entire screen is bright because it is formed by superimposing light from pixels adjacent to the gap between pixels in the color liquid crystal display panel 1 and exposing the photosensitive material.

Further, in addition to the diffraction grating, the distance between the color liquid crystal display panel 1, the optical means 5, and the photosensitive material 6 is 0.1 mm to
If it is defocused by shifting by 0.5 mm, a brighter recorded image can be obtained. In addition, a bright recorded image can be obtained with only the defocus arrangement.

As another embodiment, the optical control means 11 is
For example, it may be a light diffusion plate made of frosted glass. The light diffusing plate has a function of diffusing a pixel portion formed of the three primary colors of the light that is being emitted and exposing the light onto the photosensitive material 6. That is,
As shown in FIG. 4, light emission colors of adjacent pixels are overlapped and exposed on the photosensitive material 6. Therefore, the light is exposed to the portion corresponding to the black matrix 1e on the photosensitive material 6, and the image exposed on the photosensitive material 6 is formed by overlapping the three primary colors of light at a predetermined ratio. Get brighter. Therefore, it is possible to make the entire hard copy screen bright. In FIG. 4, the alternate long and short dash line 6b is the diffused light of the red (R) pixel 1b, the dashed line 6c is the diffused light of the blue (B) pixel 1c, and the alternate long and two short dashes line 6d.
Is the diffused light of the green (G) pixel 1d, and those having the same numbers as in FIG. 2 are the same. Other configurations and operations are the same as those in the above embodiment.

In this embodiment, a color liquid crystal display panel is used as the color image display device, but it may be a flat CRT or a plasma display. In this case, unlike the case of the color liquid crystal display panel, the display screen emits light by itself, so that the light source 13 is unnecessary.

As image signals, camcorders, VCRs, televisions, laser disks, microscopes, microscope cameras, electronic still cameras, cameras, industrial endoscopes, various measuring instrument monitors, ultrasonic diagnostic machines, dental oral cavity An image signal output from a camera, a personal computer or the like can be used.

Furthermore, although an instant film is adopted as the photosensitive material 6, other photosensitive material such as 35 mm film may be used.

[0030]

According to the present invention, the display screen is scanned by the optical means that is moved in parallel with the color display panel to form an exposure image on a photosensitive material provided in parallel with the color display panel. Therefore, the image recording apparatus is made compact, and it is possible to perform uniform image recording with less unevenness in image forming illuminance due to the viewing angle characteristics of the liquid crystal display device as compared with the case of using a magnifying (reducing) lens.

Further, since the optical control means is interposed between the optical means and the photosensitive material, the light of each pixel is overlapped and exposed in the gap between the pixels displayed on the color display panel. Since the portion is imaged as a bright image on the photosensitive material, darkening of the screen is prevented and a bright color image is obtained.

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part showing an embodiment of the invention.

FIG. 2 is a matrix diagram of a color image display surface.

FIG. 3 is an explanatory diagram showing a state in which an image is exposed and imaged on a photosensitive material when a diffraction grating is used as an optical control unit.

FIG. 4 is an explanatory diagram showing a state in which an image is exposed and formed on a photosensitive material when a light diffusion plate is used as an optical control unit.

[Explanation of symbols]

 1 Color Display Panel 1b, 1c, 1d Pixel 1e Gap 5 Optical Means 6 Photosensitive Material 7 Light-shielding Means 8 Driving Means 11 Optical Control Means 13 Light Sources

Claims (1)

[Claims] 1. A color display panel for performing color display by additive color mixing, a photosensitive material disposed facing one surface side of the color display panel, and an image on the color display panel bonded to the photosensitive material. An optical unit that is moved in parallel with the color display panel via a driving unit to form an image and an optical unit that is provided so as to move integrally with the optical unit, and the photosensitive material is exposed by unnecessary light in the surroundings. An image recording apparatus comprising: a light-shielding unit for preventing the light emission; and an optical control unit for exposing the light-sensitive material by superimposing the luminescent color of the pixel on at least the interval between two adjacent pixels of the color display panel.