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Cold cathode fluorescent lamp

A technology of cold cathode fluorescent lamp and fluorescent layer, applied in discharge lamps, gas discharge lamps, low-pressure discharge lamps, etc., can solve the problems of reducing the effective luminous length and deteriorating the brightness consistency of the display screen.

Inactive Publication Date: 2009-09-02
ALWIN ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the electrodes are non-light-emitting components, increasing the electrode length reduces the effective light-emitting length of the lamp, and thus degrades the brightness uniformity of the display screen

Method used

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

Examples

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Embodiment Construction

[0036] Reference will now be made in detail to the preferred embodiments of the invention in association with cold cathode fluorescent lamps, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers are used throughout the drawings to designate the same or like parts.

[0037] image 3 is a perspective view showing a cold cathode fluorescent lamp according to the present invention, and Figure 4 is along image 3 The sectional view of the line II-II' in.

[0038] refer to image 3 and Figure 4 , the cold cathode fluorescent lamp 150 according to the present invention includes: a glass tube 114 formed with a discharge space 122; an internal cathode electrode and an internal anode electrode arranged at opposite ends of the glass tube 114; and an external electrode for applying electric field.

[0039] Each of the external electrodes includes: an internal lead 110 connected to the end of each internal electrode; and an e...

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Abstract

A cold cathode fluorescent lamp is disclosed. The cold cathode fluorescent lamp includes a sealed glass tube provided with a fluorescent layer on an inner surface thereof, inner electrodes provided in opposite ends of the glass tube, and outer electrodes to apply an electric field to the inner electrodes. Each of the inner electrodes includes a first electrode formed in a cup shape and a second electrode provided inside the first electrode and formed in a coil shape.

Description

[0001] Related Application Cross Reference [0002] This application claims priority from Korean Patent Application No. 10-2008-0018393 filed on February 28, 2008, which is hereby incorporated by reference in its entirety. technical field [0003] The present invention relates to a cold-cathode fluorescent lamp, and more particularly, to a cold-cathode fluorescent lamp capable of prolonging its service life. Background technique [0004] With the development of an information-dependent society, demands for various display devices are also increasing. In order to meet such demands, many efforts have recently been made to develop flat panel display devices. [0005] Flat panel display devices are classified into liquid crystal display (LCD) devices, field emission display (FED) devices, plasma display panels (PDP), electroluminescence display (ELD) devices, and the like. [0006] In particular, LCDs are practically applied to various devices for display purposes due to their...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J65/04
CPCH01J61/09H01J61/0672H01J61/78H01J61/0675H01J61/067
Inventor 金炅兰李荣勋
Owner ALWIN ELECTRONICS