JPH11266466A - Moving image display method and screen shape forming method - Google Patents

Abstract

(57) [Summary] [Problem] To provide a moving image display method and a method of forming a screen shape, in which a moving image of a visual display, in particular, a screen of a television receiver is stereoscopically viewed to enhance a sense of reality. SOLUTION: The shape of the screen 1 as viewed from the front is made not to look visually rectangular, and the geometric shape of the screen is formed by any one of a straight line, a curve, and a combination of a straight line and a curve. Further, among the sides 3a to 3d of the screen, at least the right side and the left side are visually inverted trapezoidal so that the sides are not visually parallel. The method of forming the screen shape is to apply a frame-shaped paint to the inner surface or the outer surface of the moving image display device that forms the screen, or to attach a frame formed in a predetermined shape to the outer surface, or to the image processing unit of the image display device. A frame display calculation processing unit is added, and an image and a frame are combined and displayed to form a screen shape.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates generally to a moving image of a visual display, and more particularly, to a moving image display method and a method of forming a screen shape in which a screen of a television receiver is viewed three-dimensionally (substantially) to enhance a sense of reality.

[0002]

2. Description of the Related Art For example, in a conventional television receiver, the screen shape is not a perfect rectangle because the surface of the cathode ray tube is not perfectly flat, but it looks visually rectangular as shown in FIG. That is, as shown in FIG. 2, each side forming the screen is a straight line, and the upper side 7a, the lower side 7b, and the right side 7c
And the left side 7d are parallel to each other.

[0003] The screen is formed by a rectangular frame 2 having a width of about 1 cm which has been subjected to an opaque process along the rectangular edge from the inner surface of the cathode ray tube. The color of the frame 2 looks black in appearance. An outer peripheral frame 6 surrounding the tube surface is provided outside the frame 2. The inner end sides of the outer peripheral frame 6 seen from the viewer side are also parallel to each other on the upper and lower sides and on both sides, and the front surface of the outer peripheral frame 6 is finished with a relatively low reflectance.

[0004] In ordinary television broadcasting, a three-dimensional effect obtained from a moving image on the screen of a conventional television receiver is small and the power is small.

There is a great need for stereoscopic vision of television receivers to enhance the sense of realism. To achieve this, a camera, a broadcast, and a receiver are manufactured for stereoscopic vision, and glasses for stereoscopic vision are worn. A stereoscopic television system for viewing has been announced, but the system is complicated, expensive, and has not yet been put to practical use.

[0006] Japanese Patent Publication No. 6-66969 discloses a conventional example of a means for obtaining stereoscopic vision in a normal television receiver. According to this, it is said that stereoscopic vision can be obtained by making the upper side and lower side of the frame edge of the cathode ray tube the same color, making the both sides the same color, and making the upper and lower sides and side sides visually different colors. I have.

[0007] However, as a result of viewing by the inventors, in the case of a conventional television receiver in which the screen shape is rectangular, the upper side and the lower side of the screen are parallel, and both sides are parallel, the effect of stereoscopic viewing is small.

[0008]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and makes it possible to view a moving image on a visual display, in particular, a screen of a television receiver in a three-dimensional (substantial) manner, thereby obtaining a high sense of reality. An object of the present invention is to provide a simple and inexpensive moving image display method and a screen shape forming method.

[0009]

According to a first aspect of the present invention, a distance between a left end of an upper side of a screen and a left end of a lower side of the screen or a right end of an upper side of the screen is determined with respect to a distance between a midpoint of an upper side of the screen and a midpoint of a lower side of the screen. At least one of the distances to the right edge of the lower side of the screen may be different by 1% or more, or the distance between the middle point of the right side of the screen and the intermediate point of the left side of the screen may be different from the upper edge of the right side of the screen and the upper edge of the left side of the screen. In this method, at least one of the distance and the distance between the lower end of the right side of the screen and the lower end of the left side of the screen is different by 1% or more.

A second aspect of the present invention is a method of forming a geometric shape of a screen by using a straight line or a curved line or a combination of a straight line and a curved line.

According to a third aspect of the present invention, at least the right side and the left side of each side of the screen are not visually parallel.

According to a fourth aspect of the present invention, of each side forming a screen,
At least the upper and lower sides are not parallel.

[0013] By making the moving picture display method as described above, the shape of the screen can be changed, thereby obtaining from the screen and the moving image a sense of spreading, a sense of reality, or a strange feeling that cannot be experienced in everyday life. Can be

According to a fifth aspect of the present invention, the shape of the screen is visually inverted trapezoidal. According to a sixth invention, the right side and the left side of the screen are straight and parallel, and the upper side and the lower side are concave curves with respect to the screen.

[0015] Further, by making the moving picture display method as described above, the three-dimensional effect of the moving image is enhanced, and a natural and higher realism can be obtained.

According to a seventh aspect of the present invention, in the moving image display device, the inner surface or the outer surface is painted, a frame having a predetermined shape is attached to the outer surface, or a screen having a predetermined shape is formed by optical means.

According to an eighth aspect of the present invention, a frame display operation processing unit is added to an image operation processing unit of a moving image display device, and an image and a frame are combined and displayed to form a screen shape.

A ninth aspect of the present invention is a method for forming a predetermined screen shape by a function provided in a scanning type moving image display device, the length of a scanning line being different at a predetermined position in a screen height direction. It is.

By making the method of forming the screen shape as described above, the screen can be easily formed into a predetermined shape.

A description will now be given of the rationale for setting the solution means as described above. Humans see the sight in three dimensions. This is because both eyes obtain clues to the depth, and the factors are said to be convergence and binocular parallax (Koji Hiwatari, Introduction to Audiovisual Information, Shokodo, 1987). . When an object is viewed with both eyes, the line of sight of the two eyes becomes almost parallel if the object is far away, and the line of sight intersects the object if it is close. Such movement of both eyes is convergence,
The degree of tension in the muscles that move both eyes acts to give depth cues.

Since the two eyes on the face are horizontally about 6.5 cm apart, the images on the retina of both eyes when viewing an object are not exactly the same, and generally cause a shift. This difference between the images of both eyes is called binocular parallax. However, since the image of the television receiver or the like is physically on the same plane, there is no influence of the congestion. Binocular parallax is remarkable when viewing an image taken by a stereo camera with glasses, and is applied to a stereoscopic movie or a stereoscopic television system.

However, there is not much effect on stereoscopic viewing by a general television receiver. However, even when watching an image on a general television receiver or the like, a sense of perspective (three-dimensional effect) is felt depending on the shape of the image of the object and the magnitude of the movement.

Humans perceive a large object as a short distance and a small object as a distant object.
Also, a large movement feels a short distance, and a small movement feels a long distance. Also, when looking at the railroad tracks, the width of the railroad tracks is constant, but in an image projected on the retina, the width decreases as the distance (upward) increases. Therefore, a two-dimensional figure in which the distance between the lines becomes narrower as going upwards has a sense of perspective. This is because these properties act in combination.

The inventor has made the right side and the left side forming the screen not visually parallel, the upper side and the lower side not visually parallel, for example, to make the screen shape inverted trapezoidal, panoramic shape, It has been found that such a characteristic is strongly brought out by moving the image of the television receiver, whereby the stereoscopic effect is enhanced by moving the image of the television receiver, and a high sense of reality can be obtained.

Japanese Patent Publication No. 6-66969, which is a conventional example, discloses that the outer peripheral frame of the tube surface obstructs the property of the perspective of human beings. The color of the outer frame is visually different from the color of the outer frame, which is completely different from that of the present invention, and the obtained realism is small.

As a second conventional example, Japanese Patent Publication No. Sho 61-543 is disclosed.
No. 11 publication. In this method, a frame is provided so as to correspond to the outside of the outermost peripheral portion of the image surface, and the inner edge of the frame has a vertical length of 27 mm.
cm, 36 cm in width, about 2 to 6 cm in width, the reflectivity of the surface is 30 to 70%, and a depth difference is provided between the image surface and the front surface of the frame. Thereby, a sense of perspective is generated and a three-dimensional effect is obtained. However, this has a rectangular image plane (screen), which is basically different from the present invention.

[0027]

Embodiments of the present invention will be specifically described below with reference to the drawings.

FIG. 1 is a diagram showing an embodiment of a moving image display method according to the present invention. In FIG. 1, 1 is a screen, 2 is a frame forming the shape of the screen, 3a is an upper side of the screen formed by the frame 2, 3b is a lower side, 3c is a right side, 3d is a left side, and 4a is for describing the present invention. The middle point of the upper side 3a, 4b is the middle point of the lower side 3b, 4c is the middle point of the right side 3c, 4d is the middle point of the left side 3d, 5a is an A image for explaining the present invention, 5b is a B image, 5c is It is a C image.

Although the television receiver body is not shown in FIG. 1, it is a 28-inch horizontally long type, and the screen formed by the frame 2 has an upper base 58 cm, a lower base 52 cm, and a height 33.
cm 2 and the surface of the frame 2 has a reflectance of 5
% Diffuse reflection finish.

In FIG. 1 showing an embodiment of the moving image display method according to the present invention, it is perceived that the B image 5a is far from the human eye regarding perspective and the B image 5b is near from the same characteristic. Is done. Further, since the screen 1 has an inverted trapezoidal shape extending upward, the upper part of the screen is visually perceived as a wide space, and the lower part is perceived as a narrow space.

Although the A image 5a and the B image 5b both move on the screen, an illusion is added due to the inverted trapezoidal shape of the screen, and the movement of the upper (distant) A image 5a is the actual movement on the screen. B image 5 that feels smaller and is below (near)
The movement of b is felt larger than the actual movement. As a result, the nature of the human eye "feeling a close distance for a large movement and feeling a distant distance for a small movement" works strongly, and the perspective is amplified.

Further, since the lower part of the screen is narrowed, the B image 5b is perceived as being larger than the actual size on the screen, and the A image 5a is perceived as being smaller. As a result,
The nature of the human eye: "Large-looking objects perceive a short distance and small objects perceive a distant distance" strongly works to amplify the perspective.

Further, although the width of the C image 5c (road) becomes narrower as it goes upward even on the actual screen, the same illusion as described above is added, and the upper part of the road is perceived to be narrower and the lower part is perceived more widely. The nature of the human eye to the perspective works strongly and the perspective is amplified.

According to the moving image display method illustrated in FIG. 1, a high sense of reality can be obtained by enhancing the nature of the human eye with respect to the above-mentioned spread and perspective. As a result of actually viewing the image reproduced from the videotape using the method shown in FIG. 1, a natural and realistic sense of reality was obtained.

In the first invention, the distance between the left edge of the upper screen edge and the left edge of the lower screen edge or the right edge of the upper screen edge and the right edge of the lower screen edge with respect to the distance between the middle point of the upper screen edge and the middle point of the lower screen edge. Or at least one of the distances from the center of the screen is different by 1% or more, or the distance between the upper end of the right side of the screen and the upper end of the left side of the screen or the right side of the screen with respect to the distance between the midpoint of the right side of the screen and the midpoint of the left side of the screen. At least one of the distances between the lower end of the image and the lower end of the left side of the screen is set to differ by 1% or more. If it is 1% or less, the general viewing distance (6 of screen height)
When the screen is viewed from about twice the distance, it appears as a rectangle. If it exceeds 1%, it can be recognized that the object is not rectangular, and therefore, an effect peculiar to the present invention, in which the perspective is increased, is produced.

Although no upper limit is specified for the difference in distance, in the experiments conducted by the inventors, the range of 5 to 15% was that the image was natural and the sense of presence was high. However, even when the shape of the screen is inverted trapezoidal and the length of the lower base with respect to the upper base is 70%, for example, in the case of a video image of a car race, a high sense of reality is obtained. In the present invention, the reflectance of the frame forming the screen is not specified, but if it is 0 to 60%, a sense of reality can be obtained, and there is no significant difference within the range.

In this embodiment, the frame 2 is formed so that the screen has an inverted trapezoidal shape. However, as shown in FIG. 3A, the right and left sides of the screen are straight and parallel, and the upper and lower sides are relative to the screen. Even when formed in a panoramic shape with a concave curve, a high sense of realism was obtained.

As another example, the screen is trapezoidal (see FIG. 3).
b) When the screen was asymmetrical in the left and right directions (FIGS. 3c and 3d), a mysterious feeling was obtained. Therefore, although various screen shapes can be considered, shapes other than rectangles are within the scope of the present invention.

Next, an embodiment of the screen shape forming method of the present invention will be described. A first mode is to regulate a predetermined screen shape by forming a front outer peripheral frame of the television receiver into a predetermined shape. The shape of the outer peripheral frame is not necessarily fixed. For example, a mechanically movable flipper may be provided to change the shape of the outer peripheral frame manually or automatically.

The second mode is to apply a coating so as to form a frame of a predetermined shape on the inner surface and the outer surface of the cathode ray tube. In the case of exterior painting, if a paint that is soluble in a non-toxic solvent is employed, the shape can be changed to an arbitrary shape that is most suitable for the type of image that the user wants to view.

The third mode is a method in which a frame having a predetermined shape is made of a light-impermeable plate material, for example, a resin plate, a metal plate, paper, or the like, and is attached to the outer frame of the television receiver body.
The attachment may take the form of a fixing means or a detachable means. Further, the shape of the impermeable frame may be mechanically movable so that the shape of the screen can be changed according to the purpose.

The fourth mode is to transform a rectangular screen like a conventional display device into a screen of a predetermined shape by optical means. For example, a cylindrical lens is arranged in parallel with a rectangular screen formed by a conventional display device, and the optical axis of the cylindrical lens is set in the same direction as the direction in which the shape is desired to be deformed (for example, the vertical direction). By tilting the optical axis back and forth, the shape of the screen to be observed can be changed.

The fifth mode is a method in which an opaque thin plate is formed into a predetermined shape, and the formed thin plate is directly joined to, for example, a predetermined position on a tube surface. Note that a predetermined screen shape may be formed by combining a plurality of formed thin plate materials. In addition, by adopting a detachable means for joining, it is possible to freely change the screen shape according to the purpose.

The sixth embodiment is a method in which a frame display operation processing section is provided in a moving image display device, a mask having a predetermined shape is formed, and an image to be displayed is combined with the mask to obtain a screen having a predetermined shape. For the sake of explanation, assume that a matrix of image data of one screen to be displayed is A, and a matrix of masks is B. In this case, A and B are matrices with the same number of elements, row m
And column n indicate a position on the display screen.

The element (m, n) in the matrix A is an RGB three-dimensional vector Amn = (Rm
n, Gmn, Bmn). The elements in the matrix B are also three-dimensional vectors, but all the elements at the screen position corresponding to the openings of the mask are Bmn = (1, 1, 1),
It is assumed that all elements at positions on the screen other than the openings of the mask are Bmn = (0, 0, 0).

The frame display calculation processing section calculates Amn × Bmn for all elements of the matrices A and B to obtain a new matrix C. The obtained matrix C is output to the display unit of the moving image display device. The frame display operation unit may be arranged after all the color signals transmitted by the NTSC system are converted into RGB signals, or may be arranged before demodulating the color information.

The seventh mode is a method of obtaining a screen of a predetermined shape in a scanning type moving image display device by adding an arithmetic processing unit for changing the length of a scanning line at a predetermined position in the screen height direction. is there.

Although the screen of the television receiver has been described above, the invention is also applicable to a projection television or a display for games.

[0049]

As described above, according to the present invention, the moving image display method is performed by changing the distance between the upper left edge of the screen and the lower left edge of the lower screen relative to the distance between the middle point of the upper screen and the lower center of the screen. At least one of the distances between the right end of the upper side and the right end of the lower side of the screen is different by 1% or more, or the distance between the midpoint of the right side of the screen and the midpoint of the left side of the screen is the distance between the upper end of the right side of the screen and the left side of the screen. At least one of the distance from the upper edge or the distance between the lower edge of the right side of the screen and the lower edge of the left side of the screen is 1%
By making the above different, and by changing the shape of the screen by a method of forming the geometric shape of the screen by either a straight line or a curve, or a combination of a straight line and a curve, a high sense of reality can be obtained from a moving image, You can enjoy a mysterious feeling and enjoy broadcast and video images.

Further, the method of forming the screen shape includes a method of applying a frame shape to the inner surface or the outer surface of the moving image display device for forming the screen, or a method of forming a frame on the outer surface, and a method of forming a frame display portion on the moving image display device. The screen shape can be easily changed by forming the screen shape by combining and displaying the image and the frame.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing an embodiment of a moving image display method according to the present invention.

FIG. 2 is a diagram showing a conventional moving image display method.

FIG. 3 is a diagram showing each example of an embodiment of a screen shape according to the present invention.

[Explanation of symbols]

 1 screen 2 frame 3a-3d Side forming screen 4a-4c Middle point of each side 5a-5c Image

Claims (9)

[Claims] At least one of a distance between a left end of an upper side of the screen and a left end of a lower side of the screen or a distance between a right end of an upper side of the screen and a right end of a lower side of the screen with respect to a distance between a midpoint of the upper side of the screen and a midpoint of a lower side of the screen. The distance between the middle point on the right side of the screen and the middle point on the left side of the screen, or the distance between the upper end of the right side of the screen and the upper end of the left side of the screen or the lower end of the right side of the screen. A moving image display method, wherein at least one of the distances from the lower edge of the left side is different by 1% or more. 2. The moving image display method according to claim 1, wherein the geometric shape of the screen is formed by one of a straight line, a curved line, and a combination of a straight line and a curved line. 3. The moving image display method according to claim 1, wherein at least a right side and a left side of each side forming the screen shape are not visually parallel. 4. The moving image display method according to claim 1, wherein at least an upper side and a lower side of each side of the screen are not parallel. 5. The moving image display method according to claim 1, wherein the screen has a visually inverted trapezoidal shape. 6. A moving image display method according to claim 1, wherein the right side and the left side of the screen are straight and parallel, and the upper side and the lower side are concave curves with respect to the screen. . 7. A moving image display device, wherein the inner or outer surface of a display surface for displaying moving images is painted, a frame having a predetermined shape is attached, or a screen of a predetermined shape is formed by optical means. Screen shape forming method. 8. A method for forming a screen shape, characterized in that a frame display operation processing unit is added to an image operation processing unit of a moving image display device, and an image and a frame are combined and displayed on a display surface displaying a moving image. 9. A screen-shaped moving image display device, wherein a predetermined screen shape is formed by a function of changing a scanning line length at a predetermined position in a screen height direction. Forming method.