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Line linearity distortion control method of ultra-thin type color television picture tube

A control method and technology for color picture tubes, which are applied in the manufacture of discharge tubes/lamps, electrical program control, and program control in sequence/logic controllers, etc. Color picture tubes are used in batches to achieve the effect of good color purity and consistency

Inactive Publication Date: 2011-03-30
IRICO DISPLAY DEVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional manufacturing and control methods also carry out manufacturing precision control, but do not implement a special selection of linearity standard tubes. Although they can meet the linearity requirements of ordinary tubes, they cannot guarantee the linearity performance of ultra-thin tubes, and their linearity distortion performance cannot meet The requirements of TV manufacturers and users; it restricts the mass use of ultra-thin color picture tubes in TV user manufacturers, which is not conducive to giving full play to the advantages of cathode ray tubes, and is not conducive to competition with liquid crystal, plasma and other display technologies

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A method for controlling the linear distortion of an ultra-thin color picture tube, applied to the control of the line linear distortion of an ultra-thin color picture tube with a size of 54 cm and a large deflection angle of 116°, the steps are as follows:

[0015] 1. First, control the manufacturing precision of the ultra-thin color picture tube, and control the five elements of glass bulb incoming material accuracy, electron gun incoming material accuracy, sealing accuracy, sealing accuracy and exposure table accuracy within the following manufacturing accuracy ranges:

[0016] Glass bulb incoming material accuracy: -0.2mm deviation from the center value;

[0017] Electron gun incoming material accuracy: there is a deviation of 0.18° from the center value;

[0018] Sealing accuracy: -0.5mm deviation from the center value;

[0019] Sealing accuracy: there is a deviation of 0.24° from the center value;

[0020] Exposure stage precision: there is a deviation of 0.008m...

Embodiment 2

[0024] A line linear distortion control method for an ultra-thin color picture tube, applied to the line linear distortion control of an ultra-thin color picture tube with a size of 54 cm and a large deflection angle of 110°, the steps are as follows:

[0025] 1. First, control the manufacturing precision of the ultra-thin color picture tube, and control the five elements of glass bulb incoming material accuracy, electron gun incoming material accuracy, sealing accuracy, sealing accuracy and exposure table accuracy within the following manufacturing accuracy ranges:

[0026] Glass bulb incoming material accuracy: -0.5mm deviation from the center value;

[0027] Electron gun incoming material accuracy: there is a deviation of 0.20° from the center value;

[0028] Sealing accuracy: -0.7mm deviation from the center value;

[0029] Sealing accuracy: there is a deviation of 0.19° from the center value;

[0030] Exposure table precision: there is a deviation of 0.009mm from the ce...

Embodiment 3

[0034] A line linear distortion control method for an ultra-thin color picture tube, applied to the line linear distortion control of an ultra-thin color picture tube with a size of 61 cm and a large deflection angle of 116°, the steps are as follows:

[0035] 1. First, control the manufacturing precision of the ultra-thin color picture tube, and control the five elements of glass bulb incoming material accuracy, electron gun incoming material accuracy, sealing accuracy, sealing accuracy and exposure table accuracy within the following manufacturing accuracy ranges:

[0036] Glass bulb incoming material accuracy: -0.3mm deviation from the center value;

[0037] Electron gun incoming material accuracy: there is a deviation of 0.19° from the center value;

[0038] Sealing accuracy: there is a deviation of +0.4mm from the center value;

[0039] Sealing accuracy: there is a deviation of 0.18° from the center value;

[0040] Exposure stage precision: there is a deviation of 0.008...

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Abstract

The invention relates to a line linearity distortion control method of an ultra-thin type color television picture tube, which performs the control according to the following steps: firstly, manufacturing accuracy control of the ultra-thin type color television picture tube; and secondly, the selection of a line linearity standard sample pipe. The method can ensure the line linearity distortion performance, has display effects of better color purity, uniformity of luminance, white field equipollence and the like, improves the image quality of the color television picture tube, and realizes the ultra-thin property of the color television picture tube.

Description

technical field [0001] The invention relates to a distortion control method, in particular to a line-linear distortion control method of an ultra-thin color picture tube. Background technique [0002] Linear distortion is one of the key performances of the ultra-thin color picture tube, which directly affects whether the ultra-thin color picture tube can be used smoothly by the user of the whole machine. Traditional manufacturing and control methods also carry out manufacturing precision control, but do not implement a special selection of linearity standard tubes. Although they can meet the linearity requirements of ordinary tubes, they cannot guarantee the linearity performance of ultra-thin tubes, and their linearity distortion performance cannot meet The requirements of TV manufacturers and users restrict the mass use of ultra-thin color picture tubes in TV user manufacturers, which is not conducive to giving full play to the advantages of cathode ray tubes, and is not c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J9/00G05B19/04
Inventor 徐莉华李孟虎孙龙文赵军薛小健赵惠平
Owner IRICO DISPLAY DEVICES