Field emission flat-panel display and method for preparing the same
A flat-panel display, field emission technology, applied in the direction of image/graphic display tube, cathode ray/electron beam tube shell/container, cold cathode manufacturing, etc. and other problems, to achieve the effect of easier control of consistency, uniform emission, and simple process
Inactive Publication Date: 2011-06-15
IRICO
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Problems solved by technology
The processing technology of the tapered field emission display device involves multiple vacuum deposition and coating processes. The process is complex, the cost is high, and the consistency of the emission source is not easy to control. Low yield rate, has been limited to a few special applications
Other types of field emission displays are also subject to their own technical bottlenecks, and have not yet formed commercial products
Method used
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Embodiment Construction
[0016] Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:
[0017] A field emission flat panel display, such as figure 1 As shown, a high-voltage anode 8 is provided on the surface of the upper substrate 1, and the high-voltage anode is an ITO (indium tin oxide) transparent electrode with a thickness of tens to hundreds of nanometers. Phosphor powder 9 and black matrix 10 are arranged on the surface of the transparent high-voltage anode, and both the phosphor powder and the black matrix are striped. A row electrode 3 is arranged on the surface of the lower substrate 2, a protective layer 4 is arranged on the surface of the row electrode 3, a dielectric layer 5 is arranged on the surface of the protective layer 4, a column electrode 6 is arranged on the surface of the dielectric layer 5, and electrons with a low work function are arranged on the surface of the column electrode 6. The emission material 7 is a carb...
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Abstract
The invention discloses a field emission flat panel display and a preparation method thereof. The preparation method comprises the following: a step of preparing a lower substrate, which is to wash a glass substrate, print a row electrode, sinter the row electrode, coat a protective layer with film, print a dielectric layer, sinter the dielectric layer, etch patterns on the dielectric layer, print a column electrode, singer the column electrode, print a low-work-function electron emission material and set an isolation bracket; and a step of preparing an upper substrate, which is to wash a glass substrate with ITO, print patterns on a black matrix, sinter the black matrix, print patterns on fluorescent powder, sinter the fluorescent powder, place a sealing-in frame, combine, sinter and seal the upper substrate and the lower substrate and vacuumize. The display adopts the low-work-function material as an electron emission source, has the emission source in a surface emitting form, and has the advantages of good emission uniformity, high efficiency and simple structure.
Description
technical field [0001] The invention belongs to the technical field of photoelectric display, and in particular relates to a field emission flat panel display and a preparation method thereof. Background technique [0002] The field emission display device is a new type of flat panel display device, which uses the principle of electron beam bombardment of phosphor to emit visible light, and realizes the display of dynamic images by controlling the beam current switch and beam size of the electron beam. The working principle is similar to the traditional one. CRT monitor (a monitor that uses a Cathode RayTube). What is not needed is that the CRT display device uses a hot wire to realize electron emission, and then controls the deflection of the electron beam through the coil, and continuously scans the fluorescent screen to realize the picture display. The function of electron emission is completed by an electron gun. In the field emission display device, an electron emissio...
Claims
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IPC IPC(8): H01J31/12H01J29/86H01J9/20H01J9/26
Inventor 丁兴隆俞敏
Owner IRICO