JPS58145983A - Large color image display - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Color cathode ray
It can display any color image in the same way as a 4fi, ml tube, and it can display a normal power 5-CRT.
The present invention relates to a large color personal display device for displaying a larger screen size.

Conventionally, as this type of color m-image display device, those shown in FIGS. 1 and 2 have been proposed.

In the system shown in FIG. 1, an optical fiber bundle λ in which one end of the optical fiber bundle 2 is arranged uniformly is arranged on the surface of the screen of a color CRT.
The image obtained with RT/ is shown on the display screen 3. On the other hand, the other ends of the optical fiber bundles 2 are regularly arranged on the display screen 3 in the same arrangement as the arrangement on the surface of the screen of a color CRT. Therefore, display screen 3
Above, iij* obtained by color ORT/ is enlarged and displayed.

In addition, in the case shown in FIG. 2, the amount of transmitted light emitted from the white light source on the display screen j is expressed as
It is intended to form a predetermined image on the display screen j by controlling it with a built-in liquid crystal. Full display
The built-in liquid crystal is configured so that it can be controlled in a dot shape by the control device B, as shown in the enlarged detail of display 1iii in Figure 2, and each of these dots is colored red using a color filter, dye, etc. It is colored in one of the three primary colors: , green, and evening. Therefore, display − plane j
When viewed from a suitable distance, a natural color image is reproduced by mixing the three primary colors.

In principle, the devices shown in FIGS. 1 and 2 can be used as ordinary color ORTs by sufficiently increasing the density of the optical fiber bundle or the dot density of the liquid crystal.
Although it is considered possible to realize a large-sized color IIIjgI display device with a resolution equivalent to that of a screen, the following problems remain.

In other words, in the method using optical fibers shown in Fig. 1, there is a limit to the luminance of the color CRT that serves as the image source, and there is also a loss in the amount of light in the optical nozzle for enlarging the display screen. It had the disadvantage that it was extremely difficult to ensure sufficient brightness for practical use on the screen.6 Also, in the method using liquid crystals shown in Figure 2, color filters, dyes, etc. were used to display color images.
It is difficult to obtain the three primary colors red, green, and blue with high purity, making it extremely difficult to reproduce natural colors. Furthermore, when increasing dot density to increase resolution, color filter printing technology is used.

The drawback was that there were many unresolved problems in terms of dye coloring technology, etc.

The present invention has been made in order to eliminate the drawbacks of the conventional ones as described above, and uses optical fibers to display each color of light emitted from red, green, and f color light sources. a liquid crystal disposed in the middle of the optical path of each color to control the optical direction of the light guided by the respective fibers, and display an arbitrary image on the color display screen; The object of the present invention is to provide a large-sized color image display device that has sufficient brightness to be visible even under normal lighting and is capable of producing high-resolution color images.

Hereinafter, one embodiment of the present invention will be explained with reference to the drawings.

FIG. 3 is a schematic configuration diagram showing a large color image display device which is an embodiment of the present invention. In FIG. 3, 7.
r, 9 are red, green, and blue color light sources with high purity, IQ, //, /2 are each color light sources of 7 to 90 yuan (optical fiber bundle, /3 is a display screen).

Also, /II, /3. /A is each optical fiber bundle 10~
A liquid crystal panel 17 is used to control the amount of light incident on the display screen 13 so that a predetermined image is obtained on the display screen 13. Reference numeral 17 is a control device for controlling each of these liquid crystal panels /$-/j. At the end of each optical fiber bundle 10 to 1 in the display 1/JK, the three primary colors of red, green, and blue are arranged alternately and regularly, as shown, for example, in the enlarged detail of the display screen in FIG. .

Next, the operation of the embodiment of the present invention shown in FIG. 3 will be described. The light emitted from the color light sources 7 to 9 of the three primary colors of red, green, and blue is transmitted through liquid crystal panels/da to 16 arranged at the input ends of the optical fiber bundles io to l, respectively. is controlled and 10-/2 VC is input into each optical fiber bundle. Here, the amount of transmitted light of the liquid crystal panel/$-74 is controlled in a matrix manner, and each dot of the liquid crystal corresponds to each optical fiber. In other words, the amount of light incident on each fiber is independently controlled one by one. The control device 17 displays 1
In order to obtain a predetermined image on the dii surface 13, the liquid crystal panel l
蓼〜/J are controlled respectively. That is, the control device 17
controls the transmittance of each dot of the liquid crystal panel Lda corresponding to the seven eyepers so that red light corresponding to the red part of the display ha at that position is generated from the end of each fiber of the optical fiber bundle 10. . Also, the LCD panel, /! ,
The control of green light and blue light by /4 is also performed in the same manner as the control of red light.

By the above-described operation, red, green, and blue light of each color is generated from each of the optical fiber bundles 10 to 1 on the display screen 3, in an amount corresponding to each position of the aliig I to be displayed. As a result, when the display surface 3 is viewed from an appropriate distance, a natural color image is reproduced by mixing the three primary colors of red, green, and blue.

It should be noted that the liquid crystal panel used in the above embodiment is used in the display l which is in the middle of the optical path of the optical fiber bundle or at the light output end.
It may be placed on the 1iii surface.

Furthermore, in the case of configuring a large-sized display of 1 mIJIT, in order to hide the length of the optical fiber bundle, a plurality of devices similar to those of the above embodiment may be stacked in blocks.

As described above, according to the large color 1jlIi image surface water device according to the present invention, the light of the three primary colors of 1 ml of red and blue is dispersed onto the display surface by the source fibers, and the amount of light guided by each party fiber is Because it is configured to control the large color II that is extremely clear and bright! iigI
It has the advantage that it can be easily realized without being limited by the screen size unlike conventional CRTs. In addition, the large color image display device of the present invention can be used not only as a large color television, but also as a graphic panel whose display contents can be changed at will, or as a CR7 display device (which is used as a conventional computer terminal).
It has excellent effects and can be applied to a wide range of applications, such as being used as a substitute for displays.

[Brief explanation of the drawing]

Figure 1 shows a large color image IjN using conventional optical fiber.
FIG. 2 is a schematic configuration diagram showing a display device; FIG. 2 is a schematic configuration diagram showing a conventional large-scale power t-tj image display device using liquid crystal;
The figure is a large color drawing of one embodiment of the present invention! 〇7, r, 9... red, green, and blue color light sources, respectively; 10. a. //, /Co...Optical fiber bundle, A, B, /A...Liquid crystal panel, /3...Display screen, 17...Control device. Agent Shin Kuzuno - Figure 2 Figure 3

Claims (1)

[Claims] Light of each color emitted from each color light source of red, green, and blue is guided to a color display surface using a respective optical fiber, and guided by the respective optical fiber by a liquid crystal disposed in the middle of the optical path of each color. 1. A large-sized color image gI display device, characterized in that it is configured to control a light device and display arbitrary information on the color display screen.