Field emission display possessing sealing arrangement
A technology for sealing devices and displays, which is applied in image/graphic display tubes, cathode ray/electron beam tube shells/containers, cathode ray tubes/electron beam tubes, etc., and can solve problems such as sealing failure, large volume, and inconvenient installation , to achieve the effect of long reliability and good sealing
Inactive Publication Date: 2007-07-25
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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Problems solved by technology
However, the field emission display 100 has multiple receiving cavities 118 to make it bulky, and it is inconvenient to be installed in the system because the receiving cavities 118 protrude outward.
In addition, the thermal expansion coefficients between the glass material sealant, the cathode plate 106, the anode plate 102 and the side wall 112 are different, and long-term use will cause the seal between the cathode plate 106, the anode plate 102 and the side wall 112 to fail due to changes in the external temperature environment. , reducing the service life and reliability of the field emission display 100
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[0011] Please refer to shown in Fig. 2, the field emission display 1 of tool sealing device of the present invention comprises an anode plate 30 covered with fluorescent layer 40, a buffer layer 60 separated from fluorescent layer 40, a plurality of formed on buffer layer 60 Electron emitter 50 , a cathode plate 70 abutting against buffer layer 60 , a silicon thin film layer 80 and a sealing device 5 . The sealing device 5 defines an inner space (not shown), and the anode plate 30 , the fluorescent layer 40 , the buffer layer 60 , the electron emitter 50 , the cathode plate 70 and the silicon thin film layer 80 are disposed in the inner space.
[0012] The sealing device 5 includes a front panel 10 , a rear panel 20 and a side wall 90 . The side wall 90 is fixed between the front panel 10 and the rear panel 20 to form a sealed inner space. The front panel 10 and the rear panel 20 may be made of glass. The sidewall 90 is made of an iron-nickel-cobalt alloy containing 54% iron...
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The invention solves the issue of lowering service lifetime and performances of field emission display caused by different heat expansion coefficients among each parts of sealing arrangement. The field emission display includes negative plate, buffer layer closed together with the negative plate, electron emission end formed on buffer layer, positive plate with fluorescent layer being covered faced to the negative plate and sealing arrangement. The sealing arrangement defines a sealed internal space including the negative plate, the buffer layer, the electron emission end and the positive plate. The sealing arrangement includes front faceplate, rear faceplate and sidewall. The front faceplate and rear faceplate are made from glass. The sidewall is made from fernico having same heat expansion coefficient as coefficient of glass material.
Description
【Technical field】 [0001] The invention relates to a field emission display, in particular to a sealing device for a field emission display. 【Background technique】 [0002] Compared with traditional cathode ray tube displays, flat panel displays have developed rapidly due to their advantages of light weight and low power consumption. A cold cathode field emission display is a type of flat panel display. [0003] A field emission display includes a front panel forming a display screen and a rear panel having electron emitting terminals. Field emission displays use electron emitters to emit electrons and hit the fluorescent screen to make them emit light to produce visual images. The rear panel includes circuitry for controlling electron emission from the electron emission terminal. The electron emitting end is separated from the front panel to form a gap. In order to obtain a stable display effect, the electron emitting end needs to emit electrons in a vacuum environment wi...
Claims
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IPC IPC(8): H01J31/12H01J29/86H01J29/00
Inventor 陈杰良
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD