Multi-scan-line color CRT picture tube and multi-scan-line high-resolution CRT image display device

An image display and kinescope technology, which is applied in the adjustment field of multi-scanning line color CRT picture tube multi-group electron beam scanning correction, can solve the problems of image display quantization noise, image distortion, etc.

Inactive Publication Date: 2006-12-13
陶显芳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0030] The biggest shortcoming of flat-panel digital displays such as LCDs and PDPs is that when the image sampling dot matrix format is different from the image display dot matrix format, although methods such as adding or subtracting points can be used to convert the image display format, when the image sampling point When there is no corresponding relationship between the array and the pixel position of the display, the image display will produce quantization noise or image distortion

Method used

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  • Multi-scan-line color CRT picture tube and multi-scan-line high-resolution CRT image display device
  • Multi-scan-line color CRT picture tube and multi-scan-line high-resolution CRT image display device
  • Multi-scan-line color CRT picture tube and multi-scan-line high-resolution CRT image display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0170] [Implementation Mode 1] Double-scanning line color CRT picture tube copy-type double-line scanning TV set or monitor

[0171] Such as Figure 4 As shown in an ordinary single-scan line CRT picture tube color TV or monitor, just put Figure 4 The single scan line CRT picture tube used in the Figure 5 or Figure 6 Shown combined double-scan line color CRT picture tube or common cathode combined double-scan line color CRT picture tube can become a new copy type multi-line scanning TV set or display.

[0172] Figure 17 It is the working principle diagram of double-scanning line color CRT picture tube copy-type double-line scanning TV or monitor. In the figure, 17100 is a combined double-scanning line color CRT picture tube or a common cathode combined double-scanning line color CRT picture tube and a combined double electron gun. Scanning mode, image signal line sequence "1, 2, 3, ..." corresponds to "line image signal 1, line image signal 2, line image signal 3, ..."...

Embodiment approach 2

[0178] [Embodiment 2] Dual-scanning line color CRT picture tube plug-in double-line scanning TV or monitor

[0179] In order to overcome the phenomenon that small steps are easy to appear when copy-type double-line scanning TVs or monitors display moving images, Figure 18 It is a working principle diagram of a combined double-scanning line color CRT picture tube of the present invention, which is inserted into a double-line scanning TV set or display. In the figure, 18100 is the scanning mode of a combined double-scanning line color CRT picture tube and a combined double electron gun. Scanning line P is the scanning display line of the original image signal, and scanning line I is the scanning display line of the new interpolated image signal. Line image signal 3, ..." corresponds one by one. Figure 18 Among them, 18200 is an image signal digital technology processing circuit, which includes a line image signal memory that can store more than two lines of image signals, 182...

Embodiment approach 3

[0185] [Embodiment 3] Double scan line color CRT picture tube low line frequency interlaced TV or monitor

[0186] Figure 19 It is a working principle diagram of a double-scanning line color CRT picture tube low line frequency interlaced scanning TV set or monitor of the present invention, Figure 19 Among them, 19100 is the scanning mode of the combined double scanning line color CRT picture tube and the combined double electron gun, the image signal line sequence "1, 2, 3, ..." and "line image signal 1, line image signal 2, line image signal 3 ,..." one-to-one correspondence. Figure 19 Among them, 19200 is an image signal digital technology processing circuit, which includes a line image signal memory capable of storing more than two lines of image signals, 19220 is a line image signal memory capable of storing more than two lines of image signals and a digital processing circuit, and 19240 is a digital processing circuit. Image signal encoding circuit.

[0187] When th...

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Abstract

The invention discloses a multi-scan line colorful CRT kinescope, which is characterized by the following: loading multi-group electronic beam ray launching device in the kinescope; disappearing multi-bar colorful scanning bright ray on the fluorescent screen acted by deflected magnetic field; proceeding image display through multi-scan line colorful CRT kinescope; dividing the structure of CRT kinescope into combination-typed multi-scan line colorful CRT kinescope and allocation-typed multi-scan line colorful CRT kinescope; dividing the appliance of CRT kinescope into multi-line scan, line-by-line scan, low-line frequent scan, allocation scan. The electron gun in the CRT kinescope possesses over three cathodes with each scan line corresponding to three cathodes, which launches red, green, blue electronic beam separately.

Description

【Technical field】 [0001] The present invention relates to the structure and application technology of a multi-scanning line color CRT (Cathode Ray Tube) cathode ray picture tube, especially an application technology of a device for realizing high-definition image display by using a multi-scanning line color CRT picture tube, and a An adjustment method for multi-scanning line color CRT picture tube multi-group electron beam scanning correction. Through the digital technology processing of image signals and the adoption of multi-scan line color CRT picture tubes, CRT picture tubes can achieve large screen, high brightness, high contrast, high definition, and ultra-thin performance to adapt to HDTV high-definition digital Technical requirements for televisions and high-definition image displays. 【Background technique】 [0002] General CRT monitors, such as: CRT TV sets and CRT computer monitors, the CRT picture tubes currently used are all single-scanning line CRT picture tube...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J31/20H01J29/48H01J29/50H04N1/04H04N9/00
Inventor 陶显芳
Owner 陶显芳
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