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Cold-cathode fluorescent lamp

A cold cathode fluorescent lamp and electrode technology, applied in optics, nonlinear optics, parts of gas discharge lamps, etc., can solve the problems of short service life, high operating voltage, limited electrode surface area, etc., to extend service life and increase luminescence The effect of efficiency

Inactive Publication Date: 2005-09-21
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such conventional electrodes have limited electrode surface area, so conventional cold cathode fluorescent lamps have problems such as poor luminous efficiency, high electrode temperature, high operating voltage, and short service life.

Method used

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  • Cold-cathode fluorescent lamp
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  • Cold-cathode fluorescent lamp

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Embodiment Construction

[0039] The invention improves at least one electrode of a cold cathode fluorescent lamp, so that the electrode has at least two tubular electrode assemblies to increase the surface area of ​​the electrode. The electrode surface area is affected by gas ion sputtering. Therefore, the longer it takes for the electrode surface to be completely covered by gas ion sputtering, the longer its service life. Moreover, the larger the electrode surface area, the more electrons it can release, and the better the discharge efficiency. In addition, the larger the surface area of ​​the electrode, the larger the area for receiving gas ion sputtering, so the temperature generated on the electrode will be lower.

[0040] Figure 2A shows a schematic diagram of a preferred embodiment of the present invention. The CCFL 200 includes a tube 202 , a first electrode 204 and a second electrode 205 . The first electrode 204 and the second electrode 205 are installed on two ends of the lamp tube 202 re...

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Abstract

A cold cathode fluorescence lamp consists of a lamp tube, a first a second electrode, wherein the first and second electrode installed respectively at the two ends of lamp tube, the first electrode including a first tube shape and a second tube shape electrode assembly, the second tube shape electrode assembly located in first tube shape electrode assembly and connected with the first tube shape electrode assembly.

Description

technical field [0001] The invention relates to a charge-discharge tube, and in particular to an electrode of a cold-cathode fluorescent lamp. Background technique [0002] The backlight module is one of the key components of the liquid crystal display panel. Since the liquid crystal itself does not emit light, the backlight module is used to supply light with sufficient brightness and uniform distribution, so that the liquid crystal display panel can display normal and uniform display images. [0003] A commonly used light source in a backlight module is a cold cathode fluorescent lamp (Cold Cathode Fluorescent Lamp; CCFL). Figure 1A A schematic diagram of a conventional CCFL is shown. The CCFL 100 includes a tube 102 and two electrodes 104 . The two electrodes 104 are respectively disposed at two ends of the lamp tube 102 , and the lamp tube 102 is filled with metal and inert gas. The luminescence principle of the cold cathode fluorescent lamp 100 is similar to that of...

Claims

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Application Information

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IPC IPC(8): G02F1/13357H01J61/04
Inventor 蔡宜轩林怡君王以靓
Owner AU OPTRONICS CORP