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Plane fluorescent lamp

A fluorescent lamp and flat technology, applied in the field of fluorescent lamps, can solve the problems of poor excitation of the fluorescent layer 14 and limit the luminous efficiency of flat fluorescent lamps, and achieve the effect of improving luminous efficiency

Inactive Publication Date: 2008-12-10
DELTA ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is a height H between the plasma region A1 and the fluorescent layer 14, which makes the fluorescent layer 14 not well excited, and thus limits the luminous efficiency of the flat fluorescent lamp

Method used

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  • Plane fluorescent lamp
  • Plane fluorescent lamp
  • Plane fluorescent lamp

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0040] figure 2 It is a sectional view of the flat fluorescent lamp according to the first embodiment of the present invention. The flat fluorescent lamp includes an upper substrate 21 , a lower substrate 22 and two fluorescent layers 23 , 24 . The upper substrate 21 is opposite to the lower substrate 22 , and the fluorescent layers 23 and 24 cover the upper substrate 21 and the lower substrate 22 respectively. The fluorescent layers 23 and 24 are arranged opposite to each other, and a gas discharge cavity 25 is formed therebetween, and the gas discharge cavity is filled with a discharge gas 251 .

[0041] The flat fluorescent lamp also includes a pair of electrodes. The electrode pair is composed of a first electrode 26 and a second electrode 27 , and the first electrode 26 and the second electrode 27 are disposed on the lower substrate 22 . In this embodiment, the first electrode 26 and the second electrode 27 are disposed on the surface of the lower substrate 22 away fr...

no. 2 example

[0047] image 3 is a cross-sectional view of a flat fluorescent lamp according to a second embodiment of the present invention. The flat fluorescent lamp with figure 2 The flat fluorescent lamp shown is similar, the difference between the two is that the first electrode 26 and the second electrode 37 in this embodiment are arranged on two opposite surfaces of the lower substrate 22, wherein the second electrode 37 is located on the lower substrate 22 close to the fluorescent layer 24 surface. The dielectric layer 38 covers the second electrode 37 so that the second electrode 37 is not damaged by ion impact.

[0048] In addition, the lower substrate 22 has a first protruding portion 221 and the phosphor layer 24 has a second protruding portion 241 , which are the same as the first and second protruding portions of the first embodiment, so details are not repeated here.

no. 3 example

[0050] Figure 4 is a cross-sectional view of a flat fluorescent lamp according to a third embodiment of the present invention. The flat fluorescent lamp of this embodiment is substantially similar to the above embodiment, the only difference is that the first electrode 46 and the second electrode 37 of this embodiment are both disposed on the surface of the lower substrate 22 close to the fluorescent layer 24 . The dielectric layer 48 covers the first electrode 46 and the second electrode 37 .

[0051] In this embodiment, the lower substrate 22 has a first protruding portion 221 , and the fluorescent layer 24 has a second protruding portion 241 , which are the same as the first and second protruding portions of the above-mentioned embodiment, and will not be repeated here.

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Abstract

The invention discloses a flat fluorescent lamp, comprising a first substrate, at least one electrode pair, a first fluorescent layer, a second substrate, a second fluorescent later and a gas discharging cavity. The electrode pair is configured on the first substrate and composed of a first electrode and a second electrode. The first fluorescent layer covers on the first substrate which is provided opposite to the second substrate. The second fluorescent layer covers on the second substrate. The gas discharging cavity is formed between the first fluorescent layer and the second fluorescent layer and filled with discharge gas. The first substrate includes at least a first protrusion part, corresponding to which the first fluorescent layer includes at least a second protrusion part. The first protrusion part and the second protrusion part are located between the first electrode and the second electrode. The invention advances the activated level of the fluorescent layers to a large extent, thus further promoting luminous efficiency of the flat fluorescent lamp.

Description

technical field [0001] The invention relates to a fluorescent lamp, in particular to a flat fluorescent lamp. Background technique [0002] In recent years, the display screen of the TV has gradually adopted the LCD panel as the mainstream. Since the liquid crystal display panel itself does not have the function of emitting light, a backlight module (backlight module) must be provided under the liquid crystal display panel to provide a light source to achieve the display function. The light source of the backlight module of commercially available TVs is composed of multiple cold cathode tubes (CCFLs), and some light emitting diodes (LEDs) are also used as the light source. However, since CCFLs or LEDs are linear or point light sources, they need to pass through the diffuser in the backlight module to achieve uniform lighting effects. [0003] As the size of the liquid crystal display panel is increasing day by day, the requirements for the uniformity of light emission of t...

Claims

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Application Information

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IPC IPC(8): H01J63/06H01J63/02H01J63/04
Inventor 谢宇恒杨肇威林世贤
Owner DELTA ELECTRONICS INC