SU480073A1 - Device for displaying information - Google Patents

Description

one

The proposed device relates to an information display technique and can be used in various visual display systems.

Display devices are known in which screens made of elements that create an image by modulating the incident light flux are used. One device of this type contains a screen with a matrix of elements made on the basis of a thin magnetic film capable of reflecting or scattering light depending on the state of magnetization of the film. The block of sampling and "ommut." Elements of this device is made on the basis of the coordinate matrix of conductors located iodine. Rows and columns of screen elements. The image is created by irradiating the screen with a light flux from a light source that performs the side illumination of the screen. Light incident on the plane of the screen at a certain angle is reflected from unselected by the sampling and switching unit of elements and does not appear in the field of view of the observer, at the same time it is scattered on the selected elements, thereby creating the most visible image of these elements.

However, in such a display device, it is not possible to obtain a multi-color image, which narrows its use.

The aim of the invention is to create a multi-color device for displaying information on elements using various methods of modulating the external light flux by a method of sequential display of colors. This is a simple and effective solution to the technical task of multi-color information display, in particular for large screens and control boards.

In the proposed device, this goal is achieved by the fact that it contains a switch of color information subchannels that produces sync series, where m is equal to

displayed colors. The synchronized series are shifted in time one relative to the other by no less than the pulse width and serve to synchronize the display of information of individual colors in time.

The display is carried out with the help of a coincidence block containing m matching schemes for two inputs, each of which transmits information encoded in one color simultaneously with the pulses of one

the syncrosium series, as well as the illuminator, which is made pulsed with controlled colors of light, synchronized with the sync series to highlight the color of the board, which displays the information currently in effect

of time. FIG. 1 is a block diagram of the device; in fig. 2 - time diagram of his work. The device contains a screen 1, which is a flat reflecting surface composed of elements modulating the external luminous flux and controlled by the circuitry of the sampling and switching unit 2 components. Block 2 is connected via an assembly unit 3 with a match unit 4. The assembly unit 3 is a logical OR circuit that transmits information to its output from any one of the-t matching block 4 outputs. Block 4 has two matching circuits for two inputs and receives information from t directions. In the first rpytnne t inputs, the coincidence block 4 is connected to the switch outputs of the color information subchannels 5, where C-SIT pulse pulses are generated, and in another group of inputs block 4 is connected to information inputs of the device, each of which receives information from one of the tons of color information subchannels (information displayed in any one color). The outputs of block 5 are also connected to the control inputs of the illuminator 6, which is full of pulses and t controlled colors. The illuminator 6 is made on the basis of a mechanical modulator, an optical quantum oscillator, or by any known method that allows to receive light pulses of any of T colors, and provides side illumination of the screen 1, the image on which is observed by the observer 7. Symbols On. P / - On Fri in FIG. 2 denote the periods of inclusion of elements on the screen corresponding to the display of information of one color (display of information of one color subchannel). The characters CV / - TsW denote the periods of illumination of the board by the lighting device with the light of the corresponding chromaticity. The described device operates as follows. The information to be displayed (in the form of, for example, binary codes) goes through the input of the device to rpyniny m inputs of the match 4 block. Moreover, information is received for each of the m inputs of this group, which should be displayed in one of these colors. Information of any color appears at the corresponding (one of m) output of the coincidence block 4, if ' the second input of this direction, i.e., the corresponding input from the second group, m inputs of this block, connected to the color information subchannel switch 5 , there is an impulse of synchronization belonging to this color. Thus, the information of individual color subchannels, having passed through the coincidence unit 4, the assembly unit 3 and the sampling and switching unit of elements 2, is displayed on the screen 1 successively in time, which is provided by the switch 5, generating pulse sync series shifted relative to each other not less than per pulse width and, therefore, not intersecting in time (see Fig. 2). These sync series also go to the control inputs of the illuminator 6 and synchronize its operation in such a way that it irradiates the screen 1 simultaneously with the display of information with the light of the chromaticity that corresponds to the color of the currently displayed information. When the frequency of the pulses of a sync series, lying within the limits of the frame regeneration frequency in a CRT, the observer sees a continuous flicker-free image. The subject of the invention. A device for displaying information comprising a screen, a unit for sampling and switching elements connected via an assembly unit with a matching unit, distinguished by the fact that, in order to expand the functional possibilities of the device, it contains an illuminator with controlled colors of light and a switch of color informational subchannels, each of the t outputs of which is connected to the corresponding input (the first group t inputs of the match block and one of the t inputs of the illuminator, the other group t inputs of the match block dinena with the input device.

SI. Incl.P 1,1481 € I2, Incl.P2, Cw2

SIT, incl. PT, and, 8t

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