Non-mercury fluorescent lamp and LCD display with the same as backlight source

A technology for LCD displays and fluorescent lamps, which is applied to parts, optics, instruments, etc. of gas discharge lamps, can solve problems such as blurring, and achieve the effects of improving contrast, fast switching, and energy-saving contrast

Inactive Publication Date: 2012-01-04
IRICO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This feature makes the LCD display itself have a very high physical resolution, but when displaying dynamic images, there will be a certain degree of blur. From the perspective of display effects, the dynamic resolution is much lower than the physical resolution.

Method used

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  • Non-mercury fluorescent lamp and LCD display with the same as backlight source
  • Non-mercury fluorescent lamp and LCD display with the same as backlight source
  • Non-mercury fluorescent lamp and LCD display with the same as backlight source

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Embodiment Construction

[0019] In the mercury-free fluorescent lamp of the present invention, the working gas in the lamp body does not contain mercury, the working gas in the lamp body can be krypton gas, xenon gas or krypton-xenon mixed gas, and the working gas can also be neon-xenon mixed gas or Helium-neon-xenon mixed gas, the inner wall of the lamp is coated with fluorescent powder, and the fluorescent powder is a three-color fluorescent powder with short afterglow. The mercury-free fluorescent lamp of the present invention is based on the existing cold cathode fluorescent lamp or hot cathode fluorescent lamp Based on fluorescent lamp technology, xenon or xenon-containing mixed gas is used to replace the mercury-containing or mercury-containing compound working gas of existing cold cathode fluorescent lamps or hot cathode fluorescent lamps. The fluorescent powders of cold cathode fluorescent lamps or hot cathode fluorescent lamps are replaced by three primary color phosphors suitable for excitati...

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Abstract

The invention discloses a mercury-free fluorescent lamp and an LCD by taking the mercury-free fluorescent lamp as a backlight source. The mercury-free fluorescent lamp comprises a lamp body; the working gas in the lamp body is free of mercury, and the working gas can be krypton, xenon or krypton-xenon mixed gas and also can be neon-xenon mixed gas or helium-neon mixed gas, and the inner wall of the lamp body is coated with luminescent powder. The mercury-free fluorescent lamp adopts xenon or the inert mixed gas of a compound containing the xenon to replace mercury vapor as the working gas based on the existing cold cathode fluorescence lamps or hot cathode fluorescence lamps, as the vaporization process required by a mercury-excited fluorescent lamp is not needed, rapid turning on and turning off can be realized, and the time interval from turning on to the maximum luminance output is within a plurality of milliseconds.

Description

technical field [0001] The invention belongs to the field of image display, and relates to a fluorescent lamp for a display backlight source, in particular to a mercury-free fluorescent lamp and an LCD display using the same as a backlight source. Background technique [0002] Most of the current LCD TV backlights use cold cathode fluorescent lamps (CCFLs) as light sources. CCFLs mainly use mercury vapor discharge to generate ultraviolet rays to excite phosphors to emit visible light. Compared with other light sources, CCFL has the advantages of compact size, longer life, and higher luminous efficiency, but because mercury is used as the excitation source, the start-up speed is slow, because it takes a process for mercury to change from liquid or solid to vapor state, usually from It takes several seconds for the off state to reach the maximum light output. And because the phosphor powder used has a longer afterglow time, the LCD display using CCFL as the backlight source a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13357H01J61/16H01J61/35
Inventor 唐李晟
Owner IRICO
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