JP2000293111A - Picture display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate a wasteful space on a display by rotating a display part and to attain the sameness of size as compared with that in the conventional practice and also to attain the sameness of resolution as compared with that in the conventional practice. SOLUTION: An LCD 25 is supported freely rotably with respect to the main body of a display device and it is automatically rotated in accordance with the display direction of a display picture. The rotation of the panel 25 is controlled by a CPU 10 becoming a rotation control part based on the display rotation information recorded on an external recording medium 20, The CPU 10 controls the rotation of the panel 25 with a rotary mechanism consisting of the motor for rotating the display 21 connected to a motor I/F 19, a gear (1) 22, a gear (2) 23 and a rotational angle detector 24.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image display device for displaying an image or an image with sound recorded on a recording medium.

[0002]

2. Description of the Related Art For example, in the case of displaying an image taken by a digital still camera, in the conventional method, the image is displayed on a monitor using a video output of the camera body, or is temporarily transmitted via an external recording medium in which image data is stored. There is known a device for handing over to a personal computer for display.

[0003] In the above-mentioned conventional method, it is not possible to easily appreciate the photographed image as in the conventional silver halide photography. For this reason, there has been a demand for a method of easily viewing an image, such as a photo stand for silver halide photography, and in particular, a display method utilizing characteristics of an electronic image.

For this reason, for example, a method of realizing a photo stand using an LCD display and displaying a slide show has been considered. In this method, various images taken vertically, horizontally, and obliquely at predetermined time intervals are processed vertically and horizontally by image processing so that the display unit having a fixed aspect ratio and a display unit having a specific aspect ratio does not cause discomfort. Rotate to display erect.

FIG. 10 shows a specific example of a photo stand that realizes the above-described conventional method. It comprises an LCD panel 51, a power switch 52, a slide show stop switch 53, a slide show start switch 54, a one-frame return switch 55, a one-frame feed switch 56, and an external recording medium insertion slot 57. External recording medium 58 on which still images and moving images are recorded
Is inserted into the insertion slot 57, and when the slide show start switch 54 is pressed, the individual images recorded on the external recording medium 58 are displayed one after another at predetermined time intervals. When the slide show stop switch 53 is pressed, the slide show is stopped. Further, the image can be advanced by the exposure advance according to the operation of the one-exposure advance switch 56.

[0006]

Since the LCD panel 51 is fixed vertically, if the image recorded on the external recording medium 58 is a horizontal image at the time of photographing, the image is rotated by image processing, as shown in FIG. Are displayed with a margin 59. For this reason, the image size may be reduced or the resolution may be reduced. In the case of software processing, conversion takes a long time, and switching between slide show displays also takes a long time.

That is, in the conventional method, since the rotation is performed by the image processing, there is a problem in that it takes a long processing time, and when the image is rotated vertically and horizontally, the displayable area of the display device cannot be used at all and the resolution is reduced.

Further, in the case of an oblique image, the displayed image can be selected only vertically or horizontally, so that it is not erect and there is a sense of incongruity.

Further, there is a problem that a simple means for designating the information is required when the image does not have vertical and horizontal information for display. In particular, it was necessary to propose a new method for the oblique designation method.

[0010]

According to another aspect of the present invention, there is provided an image display apparatus for displaying image information recorded on a recording medium, the image display apparatus being rotatably supported with respect to a main body. And a display unit that automatically rotates in accordance with the display direction of the display image.

That is, in the present invention, the display screen itself is rotated in accordance with the display image, and is always displayed on the entire screen. In addition, when the rotation information is newly defined or corrected, the display screen is rotated by directly touching it with a hand, or a rotation operation means is provided, and the display screen is pushed and rotated to associate.

For this reason, by rotating the display screen to an arbitrary position, an image is displayed on the entire screen without waste, and an upright and easy-to-view display is realized even for an oblique image.

Further, the setting of the rotation angle corresponding to each display image can be easily set by directly rotating the display screen by hand or by setting the rotation using the operation means.

Further, even when the angle to be set is in the range of 90 to 360 degrees, since the display image can be rotated by 180 degrees when pasting the display image on the graphic RAM, all the angles can be in the range of 0 to 90 degrees, and the rotation time can be reduced. Becomes

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the image display device according to the present invention will be described with reference to the drawings.

This embodiment is an image display apparatus for reproducing and displaying image information recorded on an external recording medium such as a memory card or a floppy disk by an electronic still camera from the external recording medium.

FIG. 1 shows a block diagram of this image display device. The CPU 11 has a ROM 11,
RAM 12, external recording medium I / F 13, angle detection I / F
14, an operation panel I / F 15, a graphic RAM 17, a motor I / F 19, and an audio I / F 26 are connected.

The CPU 10 executes a program stored in the ROM 11 and controls the above components connected via a bus. In particular, the CPU 10 also operates as a rotation control unit described later. The RAM 12 is used as a working memory.

The external recording medium I / F 13 stores image information from the external recording medium 20, display rotation information described later, and C
This is an interface for transmitting / receiving display rotation information newly set or changed from the PU 10 via the internal bus. The angle detection I / F 14 receives the detected rotation angle from the rotation angle detector 24 described later via the internal bus
This is an interface for sending to 0.

The operation panel I / F 15 is provided with an operation panel 16 described later.
Signals from the above switches are sent to the CPU 1 via the internal bus.
This is an interface for sending to 0.

The graphic RAM 17 has an LCD I / F
A memory for storing image information for displaying an image on the LCD panel 25 through the LCD 18.

The LCD panel 25 is rotatably supported with respect to the main body, and automatically rotates in accordance with the display direction of a display image. The rotation of the LCD panel 25 is controlled by the external recording medium 20.
Is controlled by the CPU 10 serving as a rotation control unit based on the display rotation information recorded in the. The CPU 10 includes a display rotation motor 21 connected to the motor I / F 19.
, A gear (1) 22, a gear (2) 23, and a rotation mechanism including a rotation angle detector 24 to control the rotation of the LCD panel 25. Gear (1) 22 of this rotation mechanism
And the gear (2) 23 constitute a speed reduction mechanism.

The display rotation information is set in advance by a photographing means, for example, an electronic still camera device, as a rotation angle corresponding to each image information. That is, when an electronic still camera shoots a subject vertically, horizontally, or even diagonally, the rotation angle is also recorded.

When the CPU 10 reads the display rotation information from the external recording medium 20 via the external recording medium I / F 13, the CPU 10 operates the gear (1), which constitutes the speed reduction mechanism.
22, the LCD (25) is rotated at an appropriate speed by the gear (2). The rotation angle at this time is detected by the rotation angle detector 24, and this rotation angle information is fed back to the CPU 10 via the angle detection I / F 14, and the CPU 10 stops the rotation at a predetermined position.

Also, while displaying image information, the LCD panel 2
5 is rotated in response to a user operation, specifically, a switch operation on the operation panel 16, the rotation angle detector 24 detects the rotation angle, and outputs the CP through the angle detection I / F 14.
Send to U10. The CPU 10 changes and sets the display rotation information already recorded on the external recording medium 20 according to the rotation angle. If the display rotation information is not recorded in the external recording medium 20 in advance, the display rotation information is newly set by the same operation.

FIG. 2 shows the appearance of the above embodiment. L
The CD panel 25 is rotated vertically with respect to the main body. On the operation panel 16 of the main body, a power switch 32, a slide show stop switch 33, a slide show start switch 3
4, one-exposure return switch 35, one-exposure feed switch 36, display section rotation counterclockwise switch 37, and display section rotation clockwise switch 38 are provided. On the right side of the main body, there is provided an external recording medium insertion opening 39 which serves as an insertion opening for the external recording medium 20.

When the external recording medium 20 on which a still image or a moving image is recorded is inserted into the external recording medium insertion slot 39, and the slide show start switch 34 is pressed, the recorded individual images are successively arranged at predetermined time intervals. To be displayed.

FIG. 3 shows a state in which the LCD panel 25 is rotated obliquely with respect to the main body, and FIG.
Shows a state in which is rotated laterally with respect to the main body.

The operation of the image display device will be described below in detail with reference to FIGS.

FIG. 5 is a flowchart showing the processing immediately after the power is turned on. FIG. 6 is a flowchart when the slide show is executed. FIG. 7 is a flowchart for setting the rotation angle and displaying the frame advance display. All operations are performed by the CPU 10 of FIG.
Is executed in accordance with the program stored in the ROM 31.

In FIG. 5, after the power is turned on and the external recording medium 20 is inserted into the external recording medium insertion port 39,
If the slide show start switch 34 is pressed in step S1, the slide show is automatically started. If the switch is not pressed, the rotation angle setting or the exposure feed display state is set.

At the start of the slide show in FIG. 6, first, in step S2, the external recording medium I / F is read from the external recording medium 20.
The image file is read via the RAM 13 and stored in the RAM 12. If the data in the RAM 12 is in the JPEG or other format, a decompression process is performed in step S3.

In step S4, display angle setting information, that is, the display rotation information is fetched from the external recording medium 20, and in step S5, the shortest rotation amount and the rotation direction from the current display angle position at the time of displaying the next image are calculated. I do.

Then, the CPU 10 determines in step S6 the motor I / F 1 based on the calculated minimum rotation amount and rotation direction.
The motor 21 is started via 9. The LCD panel 25 rotates in a predetermined direction and angle by a reduction mechanism including a gear (1) 22 and a gear (2) 23 corresponding to the driving of the motor 21. The rotation amount is determined by the angle detection I / F in step S7.
14 and read from the rotation angle detector 24 via the CPU
It is determined in step S8 whether or not 10 has reached the target angle, and when it has rotated to a predetermined position, the motor is stopped.

Next, in step S9, the decompressed image data on the RAM 12 is transferred to the graphic RAM 17, and in step S10, an image is displayed on the LCD panel 25 via the LCD I / F 18.

When data is transferred to the graphic RAM 17, two types of sticking directions at a position of 0 ° or 180 ° are selectively used according to the result of step S5. As a result, a 180-degree rotation can be completed during the transfer operation.

With this, the display of one sheet is completed, and step S
If it is determined in step 11 that the predetermined time has elapsed, if the next data is present (step S12), the process is repeated again. If not, it is determined whether or not the entire data is to be continued endlessly (step S13).

In the rotation angle setting (exposure feed display) shown in FIG.
The operation from step S14 to step S22 is the same as the operation from step S2 to step S10 of the slide show described above.

Here, the image is updated by the user using the exposure return switch 35 and the exposure feed switch 36.
In step S23, the display unit rotation counterclockwise switch 37 and the display unit rotation clockwise switch 38 are operated as necessary, and the LCD panel 25 is actually rotated, so that the display rotation information can be newly set or changed. This is different from the processing during the slide show.

When there is an instruction of exposure advance (step S24), exposure return (step S25), or termination (step (S27)), the rotational position is read regardless of the setting in step S23, and external recording is performed. The display rotation information based on the rotation angle detected by the rotation angle detector 24 is changed or newly set at a predetermined location of the device 20 (steps S26 and S26).
28). Unless the angle setting is considered, there is no difference in operation from the exposure playback.

Next, FIG. 8 shows the appearance of a modification of the above embodiment. This modification differs from the apparatus shown in FIG. 2 only in the method of setting the angle. The rotation angle is set by directly touching the LCD panel 25 with the hand and rotating as shown by the arrow to set the display rotation information. This method is the same as setting up a photo stand for silver halide photography.
The easiest operation method is realized.

FIG. 9 shows a procedure for setting the rotation angle in this modification. The processing of step S23 in FIG.
It has been changed as shown in That is, the display unit is manually rotated as necessary, and the display rotation information can be newly set or changed.

In the present invention, not only a still picture but also a compressed moving picture with sound can be reproduced in the same manner. In the example of FIG. 1, the sound is transmitted from the speaker 27 via the audio I / F 26. In the example of FIG.
Emitted from 0.

The external recording medium 20 is not limited to a memory card, a floppy disk or the like, but corresponds to any medium. Although this form is taken up for explanation, the gist of the invention is not limited to this form.

[0045]

As described above, according to the present invention,
Since the display unit is rotated as compared with the related art, there is no useless blank space on the display, and the same size is achieved. Further, the same resolution can be achieved as compared with the related art.

Further, as compared with the related art, an oblique photograph can be displayed without a sense of incongruity. In addition, compared to the past,
New or changed display rotation information can be set by a simple method.

[Brief description of the drawings]

FIG. 1 is a block diagram of an image display device according to an embodiment of the present invention.

FIG. 2 is an external view of the image display device, particularly when the LCD panel is rotated vertically with respect to a main body.

FIG. 3 is an external view when the LCD panel of the image display device is rotated obliquely with respect to a main body.

FIG. 4 is an external view of the image display device when the LCD panel is rotated sideways with respect to a main body.

FIG. 5 is a flowchart showing processing immediately after turning on the power of the image display apparatus.

FIG. 6 is a flowchart when the image display device executes a slide show.

FIG. 7 is a flowchart of setting a rotation angle of the image display device and displaying an exposure shift.

FIG. 8 is an external view of a modification of the image display device.

FIG. 9 is a flowchart of setting a rotation angle and displaying an exposure advance in the above-described modified example.

FIG. 10 is a diagram illustrating a specific example of a photo stand that realizes a conventional image display method utilizing characteristics of an electronic image.

FIG. 11 is a view showing a state in which a horizontal image during shooting is displayed on the LCD panel of the photo stand fixed vertically.

[Explanation of symbols]

10 CPU, 14 Angle detection 1 / F, 16 operation panel,
21 rotation motor, 22 gears (1), 23 gears (2), 24 rotation angle detector, 25 LCD panel

Claims (9)

[Claims] 1. An image display device for displaying image information recorded on a recording medium, comprising: a display unit rotatably supported by a main body and automatically rotating in accordance with a display direction of a display image. An image display device characterized by the above-mentioned. 2. The image display device according to claim 1, further comprising: rotation control means for controlling rotation of the display unit based on display rotation information recorded on the recording medium. 3. The display rotation information is set in advance by photographing means or other means in accordance with each image information.
3. The image display device according to claim 2, wherein the rotation control means controls the rotation of the display unit based on the display rotation information. 4. An angle detecting means for detecting a rotation angle of the display unit when the display unit displaying the image information is rotated, wherein the angle detection unit detects the rotation angle of the display unit according to the rotation angle detected by the angle detection unit. 2. The image display device according to claim 1, wherein the display rotation information of the display unit is newly set or changed. 5. An apparatus according to claim 1, further comprising: an angle detection unit configured to detect a rotation angle of the display unit when the display unit displaying the image information is rotated, wherein the rotation unit detects the rotation angle of the display unit according to the rotation angle detected by the angle detection unit. The image display device according to claim 3, wherein the display rotation information of the display unit is newly set or changed. 6. An operation unit for rotating the display unit, wherein when the operation unit is pressed while an image is displayed on the display unit, the rotation angle of the display unit detected by the angle detection unit is set to The image display device according to claim 4, wherein the display rotation information of the display unit is newly set or changed accordingly. 7. An operation unit for rotating the display unit, wherein when the operation unit is pressed while an image is displayed on the display unit, the rotation angle of the display unit detected by the angle detection unit 6. The image display device according to claim 5, wherein the display rotation information of the display unit is newly set or changed according to the following. 8. The image display device according to claim 3, wherein a shortest rotation angle is calculated from the display rotation information, and reaches a target rotation angle within a rotation range of 0 to 90 degrees. 9. The method according to claim 1, wherein a shortest rotation angle is calculated from the rotation angle detected by the angle detection means, and the rotation angle is recorded on the recording medium as display rotation information of a new setting or a change setting. 5. The image display device according to 4.