CN1022443C - Multi-cathode ray system information display - Google Patents

Abstract

A multi-cathode ray system information display, which consists of a multi-channel video signal controller, an information storage device, a video signal output component, a cathode ray tube, a deflection circuit, a junction bright band elimination circuit, an auxiliary adjustment circuit, and a shell, can scan and display in different sections, so that the different contents of each section can naturally intersect to form a complete image. This new type of display has a significantly increased information display capacity of 2 to 30 times compared to the current display, and the image is clear, fast, and has a high resolution, which can be matched with a high-speed computer, which brings great convenience to the application of engineering design, remote sensing, meteorology, power stations, and transportation operations.

Description

The invention creates a multi-cathode ray display which belongs to the information display technology.

At present, the commonly used information displays at home and abroad are all displays composed of cathode ray tubes (CRTs) as the main component, and these displays are all single-cathode ray system structures. As the application fields of information display devices become more and more extensive, the computing speed of computers is also getting higher and higher. In particular, the amount of information stored on the screen of the display is required to be larger and larger. Therefore, the existing single cathode ray The system's display has become more and more obvious that it has deficiencies, mainly in the following aspects:

1. The amount of information displayed is too small

In engineering design, the image display of printing and typesetting layout design, remote sensing meteorology, etc., can only be partially displayed, and it is impossible to display and process a large amount of information as a whole, which has great impact on data processing or image processing of engineering design It brings a lot of trouble, so the efficiency is not high, and the speed is not fast.

2. The resolution is not high

In order to improve the image quality, the existing high-resolution and high-precision picture tubes have a small screen area and are expensive, so sometimes the scanning frequency is increased on the inherent screen to reduce the pixel size, but it is still possible to observe Inconvenient, the more complex the image is, the harder it is to keep it clear.

3. Slower

Commonly used display image tubes have an image change time of 16-20 milliseconds per frame, which sometimes causes image distortion, ghosting or blurring when displaying fast information, and cannot be well adapted to such things as rapid identification, command systems, power stations and traffic operation management. Quick info on tube facets shows facets.

4. Not compatible with computer matching

Computers have developed to high-speed and ultra-high-speed computers, and their response speed has been two to six orders of magnitude higher than that of products in the 1960s. So there is an urgent need for a display with high definition, large information storage capacity, and fast calculation speed to match it.

The purpose of the invention is to provide a new type of display with large information storage capacity, high resolution and fast calculation speed.

The present invention is realized by adopting the following scheme. The existing single cathode ray system display is improved to: at least two or more cathode ray systems share a picture tube of a screen, that is, the picture tube is a multi-cathode with the same screen section. The ray structure is scanned and displayed on its different sections, and at the same time, the different contents of each section can naturally intersect to form a complete image. Each cathode ray system still includes its own electron gun, focusing, dimming, deflection, and accelerating electrode components, which constitute their own independent video image signal channels.

The invention has the advantages of: due to the adoption of the multi-cathode ray system to share the special structure of multi-cathode ray picture tubes that are scanned in sections on the same screen, it has the following obvious advantages:

1. The signal storage capacity of the display is significantly improved compared with the existing display, and can be increased by 2 to 30 times. Moreover, the image is clear, which significantly improves the efficiency in the process of processing data, images and other information during use, and reduces many troubles in the process of information processing. In particular, it can fully and clearly reflect the entire data or image information directly on one screen, which brings great convenience to engineering design, image processing in remote sensing, and meteorology.

2. The replacement speed is fast, generally 50% to 3% of the current time, especially suitable for rapid identification, command system and operation management of power station traffic.

3. The resolution is high, which can be increased by 2 to 30 times.

4. Can be matched with high-speed computer.

5. The structure is simple, the cost is low, and the price is slightly higher than that of existing displays.

Below in conjunction with embodiment accompanying drawing, the utility model is described in further detail.

Accompanying drawing 1 is the principle structural block diagram of the multi-cathode ray system of the inventive embodiment of the present invention.

Accompanying drawing 2 is the picture tube structure schematic diagram created by the present invention.

Accompanying drawing 3 is the circuit diagram of video signal scanning system of the present invention

Accompanying drawing 4 is multi-channel video controller circuit diagram of the present invention

Accompanying drawing 3 joins with accompanying drawing 4 to constitute the general structural view of the multi-cathode ray system display of the present invention.

Referring to the accompanying drawing 1 of the embodiment, it can be seen that the display is a display of a three-section three-cathode system. These three cathode ray systems receive information input from a single channel through the information input part (1) and the microprocessor (2). The segmented circuit is composed of unit controller [3 _1-3 ], information memory [4 _1-3 ], video signal output unit [5 _1-3 ], picture tube with multi-cathode ray structure [6 _1-3 ], deflection The circuit (7) is composed of a junction bright band blanking circuit (8), a focus, brightness, synchronization and linear adjustment circuit (9), a power supply circuit (10), an electron beam magnetic positioning and distortion correction circuit (11) . The unit circuits of each division in the whole display are conventional circuits. The multi-cathode ray picture tube [6 _1-3 ] does not superimpose and draw multiple rays (text, image) with different division of labor on the screen, but scans and displays on different sections, so that the Different contents can naturally intersect to form a complete image (as shown in Figure 2), and the screens of the various sections in the picture tube (6) are connected and continuous as a whole.

See attached drawing 1, when working, first input the information (numbers, images) into the computer (2) through the keyboard (1) of the information input part, and then transmit it to the corresponding information memory _[ 4 _1-3 ] (the natural scene is not stored but transmitted directly), it is applied to the cathodes of each ray tube through the video signal output part [5 _1-3 ], synchronized with the deflection circuit (7) controlled by the host computer, and the information are displayed at the corresponding positions in the respective screen segments. In order to avoid bright bands or dark areas at the joints of each section, a junction blanking circuit (8) is added, and an auxiliary adjustment circuit is added. The auxiliary adjustment circuit refers to the conventional manual adjustment of the focus, brightness, and synchronization of each beam. and a linear adjustment circuit part (9), a power supply circuit (10) and an electron beam magnetic positioning and distortion correction circuit (11).

Find out in detail with reference to accompanying drawing 3,4 of embodiment, this display is the color display of three sections three cathode ray systems, and it is known cathode ray system structure, as Heilongjiang Science and Technology Publishing House published in 1986 "Practical Microcomputer Encyclopedia No. 115-123 pages", "Principle and Application of Microcomputer IBM PC Page 33" published by Nanjing University Press in 1984, the disclosed video signal controller circuit structure, "Color TV Circuit Analysis" published by China Radio and Television Press in 1988 The circuit structure of the cathode ray system disclosed in the first volume "page 46-54" or Sony color TV KV1882CH type or Sanyo color TV CTP6920 type. The circuit parts within the dotted lines of the accompanying drawings 3 and 4 in this application are the known circuit parts of these single cathode ray system displays. Combining it with multiple single cathode ray systems constitutes a multi-cathode ray system display as shown in Figures 3 and 4. The key to the display is the design of the multi-cathode ray system picture tube MCRT. Its working process is: TV images input from the outside, or other forms of data images, are decomposed into three-channel color video signals S ₁ , S ₂ , and S ₃ by the multi-channel video signal controller (Figure 4). Color video signals include: red R ₁ ~ R ₃ in hue, blue B ₁ ~ B ₃ , green G ₁ ~ G ₃ , brightness signal I ₁ ~ I ₃ and frame synchronization signal 1 ~ 3, line synchronization signal 1 ~ 3 , These signals are respectively sent to the corresponding cathode ray system (Figure 3), so that the corresponding pictures can be scanned on the respective screens. Data images and TV images can be displayed according to the requirements of use. The multi-channel video image controller (Figure 4) is exactly the same as the commercially available and widely used computer terminal, or it can be composed of three commonly used CRT terminal displays, the only difference is that it consists of three independent The complete CRT picture tube, when applied to TV images, can be composed of three color TV receiver circuits of the same type.

As a complete display device, although the number of signal channels is the same as that of the ray system, the repeated components will be reduced or shared. Take computer data image applications as an example, (the actual circuit is shown in Figure 3 and 4 ) work, first input information from the keyboard through the interface circuit, or send the information input from the computer bus into the memory RAM, for these image data is controlled by the microprocessor 8086, through the direct data memory 8257 through the 8275 and 8275 of the dedicated display control circuit CRTC The character generator sends the corresponding characters and graphics to the parallel/serial conversion circuit to generate the serial video signal and timing signal required for scanning the image. In synchronization with this, the corresponding character is given by the color matching circuit and the color encoder. Finally, all video signals are given: red, blue, green and luminance signals, as well as two synchronous signals of line and frame, and are sent to the respective corresponding section scanning systems (as shown in Figure 3), and the microprocessor in Figure 4 , memory, keyboard and interface, character generator, etc. can share a group of circuits. When applied to a TV system, it is composed of three identical known TV receiver circuits (such as Sanyo color TV CT6920 type). The differences are: It only changed to a MCRT picture tube with a shared screen and partition scanning. Using this new type of multi-cathode ray system picture tube (called MCRT) to design and manufacture a new type of multi-cathode ray display, its information capacity, resolution, and display speed will be increased to 2 to 30 times depending on the application. The application side will take a step forward.

Claims (2)

1, the display of a kind of multi-cathode ray system, it is made of information input part, microprocessor, cell controller, information-storing device, video signal output part, deflection circuit, kinescope and shell, it is characterized in that: this display also includes blanking circuit, at least by the kinescope of the shared screen of plural cathode ray system, promptly this kinescope is the multi-cathode ray structure that shows with the scanning of screen partition section, is connected between each section screen of kinescope (6) to be integral.

2, according to the described display of claim 1, it is characterized in that: kinescope (6) can be made into the cathode ray structure at 2～30 sections.

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