JPS6046874B2 - Relaxed TV display device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a relaxed type television display device that allows images on a color television picture tube to be viewed realistically and without fatigue even when viewed for a long time.

FIG. 1 shows a commonly used color television receiver, and numeral 1 indicates the image plane which is the light emitting area on the face of the color picture tube.

The color picture tube is attached to a cabinet 2, and a black or gray-black bezel 3 is provided so as to define an image plane 1. FIG. 2 shows a case where the relaxed type television display device proposed by the applicant is applied to such a color television receiver. The shaded portion in FIG. 2 indicates the relaxation optical body 4. As shown in FIG. The relaxation optical body 4 has a shape such that a part thereof overlaps with the outermost portion of the image plane 1 of the color picture tube, and is attached to a frame 5, and this frame 5 is attached to the cabinet 2. In this way, the image at the outermost periphery of the image plane 1 is relaxed by passing through the relaxation optical body 4, and this relaxed image becomes the image at the center of the image plane 1 (referred to as the main image).
will be surrounded by. Here, softening means that the resolution is lower than that of the main image and the contrast is poor. According to the above-mentioned relaxation type television display device, the main image appears clearer and more realistic than the ordinary color television receiver shown in Fig. 1, and it has the effect that it can be viewed for a long time without tiring. .

This effect is thought to be due to the reasons listed below. (a) Since the main image is surrounded by the relaxing images, the line of sight naturally concentrates on the central area, attracting attention to the main image, and as a result, the realism increases.

(b) Image screen 1 was regulated by bezel 3 accordingly.
You no longer have to worry about the dimensions of the screen, and it blends naturally into the screen, increasing realism and reducing fatigue.

'(c) By unconsciously contrasting it with the blurred relaxation image, the main image is felt to be clearer.

(d) There are characteristics of human vision called the Matsuha effect and the Hering effect, and when the bezel 3 is particularly black, the brightness changes suddenly at the boundary between the image plane 1 and the bezel 3. The above-mentioned effect appears at this boundary, and the brightness and darkness are perceived as being emphasized so that the area along the bezel 3 feels brighter than it actually is.

Therefore, the peripheral area along the bezel 3 is difficult to see, and viewing it for a long time can be tiring. Relaxed images remove these effects, so you can watch them for a long time without getting tired. The present invention provides such a relaxation type television display device, in which a video screen 1
The optical path of the light from the peripheral part of is divided into two, one optical path forms the first relaxation image, and the other optical path forms the second
The main image on the image plane 1 is surrounded by the first relaxation image and further surrounded by the second relaxation image, and the relaxation optical body is used for this purpose. There is a paper that attempts to propose a specific structure for 4.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 3 and 4. In the figures, 6 and 7 are first and second electrodes on which fine irregularities are formed on at least one surface of a synthetic resin transparent plate. This shows a transmission type scattering plate. These transmission type scattering plates 6 and 7 include a pin spot screen, a fly's eye rain screen, a prism screen with a series of minute prisms, a mosaic lens screen with a series of mosaic lenses, a part of a large-diameter Fresnel convex lens, A lenticular lens or the like can be used, and instead of one lens as in this example, a plurality of lenses can be stacked, or different lenses can be stacked. The transmission type scattering plate 6 is provided with one side in contact with the face surface 8 of the color picture tube and the other side inclined at an angle of about 45 degrees away from the face surface 8. One side of the shape scattering plate 7 is tightly attached. child. In this case, the outermost peripheral region (indicated by diagonal lines in FIG. 3) of the light emitting portion 9 of the phosphor of the color picture tube 8 and the transmission type scattering plate 6 are arranged to partially or completely overlap. The width of the transmission type scattering plate 6 is selected to be smaller than that of the transmission type scattering plate 7, so that the scattering surface formed by the two is ! The face surface 8 is attached to a frame 5 so as to surround the image surface 1 in a picture frame shape. Note that the frame 5 is not shown in FIG. 3 for the sake of simplicity. Further, a half mirror 10 having approximately the same width as the transmission type scattering plate 6 is provided.
is provided so as to overlap this transmission type scattering plate 6. By making the distance between the transmission type scattering plate 6 and the half mirror 10 close as shown in the figure, the width of the half mirror 10 can be made approximately equal to the width of the transmission type scattering plate 6. A full mirror 11 is provided in the reflection optical path of the light incident on the half mirror 10 from the light emitting section 9 of the color picture tube. full mirror 1
1 is provided parallel to the half mirror 10 at a predetermined distance, and one side thereof is in contact with the face surface. An auxiliary full mirror 12 is provided between the other side of the full mirror 11 and the other side of the transmission type scattering plate 7. These half mirror 10 and full mirrors 11 and 12 are also fixed to the frame 5. Furthermore, it is preferable to use mirrors made of synthetic resin transparent plates because they are lightweight and inexpensive. With the above configuration, the light emitting section 9 of the color picture tube
The light from the outermost part of is guided forward (viewing position) via the half mirror 10 and the transmission type scattering plate 6, and
After being reflected by the half mirror 10 and the full mirror 11, it is guided forward via the transmission type scattering plate 7.

Therefore, from the front, it is possible to view the main image on the image plane 1 as well as the first relaxation image formed by the transmission scattering plate 6 and the second relaxation image formed by the transmission scattering plate 7.
As mentioned above, all of the softened images have lower resolution and poorer contrast than the main images, but it is important to note that (the light emitting point rises) to the transmission type scattering plate 6
Compared to the optical path length up to
This means that the optical path length up to the point becomes longer. Therefore, the relaxation image produced by the transmission scattering plate 7 is more relaxed (lower resolution, lower contrast) than the relaxation image produced by the transmission scattering plate 6.
The result is a light that shows almost only scattered colored light. In this way, the present invention allows a first relaxation image, which can be called a frame image, to be seen around the main image, and which can be called a frame image, which does not lose its relationship to the main image to some extent, and furthermore, a first relaxation image, which can be called a frame image, which does not lose its relationship to the main image to some extent, can be seen, and the scattered colored light surrounding the first relaxation image can be seen. Since the second relaxation image can be viewed, the main image and both relaxation images can be perceived with a natural sense of unity, which further improves the effect of the relaxation type television display device described above. sell. In addition, in order to create a natural connection between the main image and the relaxation image, and to create an atmosphere and spacious display, the optical path is divided into two in the present invention, so the shape of the relaxation optical body is small. You can do it. The full mirror 12 is used to effectively utilize light by reflecting light from the light emitting section 9, light reflected from the half mirror 10, light reflected from the transmission type scattering plates 6 and 7, and the like.

[Brief explanation of the drawing]

FIG. 1 is a front view of a color television receiver, FIG. 2 is a front view used to explain a relaxed type television display device, FIG. 3 is a partially enlarged sectional view of an embodiment of the present invention, and FIG. 4 is a front view of a color television receiver. 1 is a partially cutaway front view of an embodiment of the invention. 1 is an image plane, 6 is a first transmission type scattering plate, 7 is a second transmission type scattering plate, 8 is a face surface, 10 is a half mirror, 11
, 12 are full mirrors.

Claims (1)

[Claims] 1. First and second transmission type scattering plates each having minute irregularities formed on at least one surface of the transparent plate are disposed in front of the face surface of the color picture tube with one side of each other in close contact or close to each other, and A half mirror is provided so as to overlap the transmission type scattering plate, and a full mirror is provided on the half mirror in the reflection optical path of the light incident from the color picture tube, and the reflected light from the full mirror is transmitted to a second transmission type scattering plate. A relaxation type television display device in which mutually different relaxation images are viewed together with the image of the color picture tube from the front of the first and second transmission type scattering plates.