A plasma display panel with reduced noises is provided in the invention.
According to the invention, a preferred embodiment is a plasma display panel. Referring to
In this embodiment, the front plate 22 includes a first glass substrate 221, a plurality of transparent electrodes 222, a plurality of auxiliary electrodes 223, a transparent dielectric layer 224, and a first protective layer 225. The back plate 24 includes a second glass substrate 241, a plurality of address electrodes 242, a dielectric layer 243, and a second protective layer 244. The shadow mask 26 includes a plurality of barrier ribs 261 and a plurality of color phosphors 262. The red, green, and blue phosphors are respectively represented by the marks 262A, 262B, and 262C. As those skilled in the art know, the devices included by the above mentioned front plate 22, back plate 24, and shadow mask 26 may have some differences in various plasma display panels. Thus, the devices of the front plate 22, back plate 24 and shadow mask 26, according to the invention, are not necessarily the same as those shown in
In practical applications, the first adhesive layer 28 may include glass or other similar material and is used to stick the shadow mask 26 to the front plate 22. Taking glass as an example, the producer can first spread glass powder or glass liquid on the plane of the shadow mask 26 opposite to the front plate 22 during the process of manufacturing plasma display panel 20. Afterward, the step of sealing and air-extracting will be done. When the temperature rises beyond the melting temperature of the glass material during the process, the glass powder or glass liquid spread on the shadow mask 26 will be melted, thus making the shadow mask 26 and the front plate 22 stick together. When the temperature decreases below the melting point of the glass material, the glass powder or glass liquid will be solidified to form the first adhesive layer 28 shown in
According to the invention, the plasma display panel 20 can further include a second adhesive layer 29 formed between the shadow mask 26 and back plate 24 to fix the shadow mask 26 to the back plate 24, as shown in
In order to improve contrast performance in a bright room, low-reflectivity material such as black glass can be used as the material applied between the shadow mask 26 and the front plate 22. It can reduce the reflection of light from the environment.
In the embodiment according to the invention, when the gas discharges, the shadow mask 26 can not generate vibration alone because it is solidified with the front plate 22 or the back plate 24. Therefore, the problems of noise in the prior art can be resolved.
With the above example and explanation, the features and spirits of the invention will be hopefully well described. Those skilled in the art will readily observe that numerous modifications and alterations of the device may be made while retaining the teaching of the invention. Accordingly, the above disclosure should be construed as limited only by the metes and bounds of the appended claims.
Number | Date | Country | Kind |
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095130547 | Aug 2006 | TW | national |