1. Field of the Invention
The invention generally relates to a display panel and a manufacturing method thereof. More particularly, the invention relates to a plasma display panel and a manufacturing method of barrier ribs thereof.
2. Description of Related Art
Flat panel displays serve as a communication interface between human and computers. At present, the flat panel displays include plasma displays, organic electro-luminescent displays (OELD) and liquid crystal displays (LCD). Among them, plasma displays have such advantages as big size, self-illuminance, wide-view angle, thinness and full color, and thus have the potential of becoming the mainstream flat panel display product in its next generation.
In general, barrier ribs of a plasma display not only constitute discharging spaces in the display area of a panel, but also extend into the non-display area of the panel to assist the assembly of the front substrate and the rear substrate.
Early plasma display panels' lower resolution and broader barrier ribs allow the stripe leads to provide enough structural strength against the loading pressure when printing the fluorescent material layer in the discharge spaces. However, as modern display panels require higher resolution, the breadth of the barrier ribs has to be relatively decreased. The narrowed stripe leads may not provide enough structural strength and can be damaged by the loading pressure in printing. In addition, the stripe leads may undergo heterogeneous thermal expansion in the following sintering process due to regular thickness of the barrier ribs. As a result, as exemplified in
In either of the situation, the front substrate and the rear substrate will not be able to fit during assembly since the stripe leads are deformed, and will result in crosstalk disturbance during display so the display quality will be reduced.
Accordingly, the invention is directed to providing a plasma display panel and a manufacturing method of the barrier ribs thereof, which has honeycomb supporting structures in the non-display area to improve the yield factor of assembling the front substrate and the rear substrate as so to improve the display quality.
The invention provides a plasma display panel, which is divided into a display area and a non-display area located in the periphery of the display area. The plasma display panel comprises a front substrate, a rear substrate, multiple barrier ribs, and multiple supporting ribs, wherein the front substrate and the rear substrate are parallel, and the barrier ribs are disposed between the front substrate and the rear substrate in the display area and constitute discharging spaces. In addition, the supporting ribs are disposed between the front substrate and the rear substrate in the non-display area and constitute a plurality of honeycomb supporting structures.
The invention further provides a manufacturing method of barrier ribs of a plasma display panel. First, a substrate, divided into a display area and a non-display area located in the periphery of the display area, is provided. Next, when a patterned barrier material layer forms on the substrate, the layer further constitutes discharging spaces in the display area and a plurality of honeycomb supporting structures in the non-display area.
In conclusion, the plasma display panel and the manufacturing method of barrier ribs thereof in the invention is directed to forming the honeycomb supporting structures in the non-display area while the discharging space is formed, wherein the honeycomb supporting structures can enhance the structural strength and prevent cracking, peeling, or bulging caused in conventional printing or sintering process so the yield factor of assembling the substrates can be improved.
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.
Reference will now be made in detail to the present embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers are used in the drawings and the description to refer to the same or like parts.
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The main character of the invention is directed to changing the conventional design of the stripe leads to the honeycomb supporting structures to improve the structural strength. It should be noted that although the embodiment of the invention provides the honeycomb structures, in practice, the supporting structures can also be a rectangle, triangle, or multilateral closed structure to provide substantial improvement of structural strength. And changes in length, width, or thickness can also be made for the best result.
To sum up, the plasma display panel and the manufacturing method of the barrier ribs thereof in the invention is directed to forming the honeycomb supporting structures in the non-display area to provide better structural strength and avoid cracking, peeling, or bulging in the manufacturing process of prior art. Therefore, the yield factor of assembling the front substrate and the rear substrate can be improved and the crosstalk disturbance due to uneven assembly of the substrates can also be prevented for better display quality.
It will be apparent to those skilled in the art that various modifications and variations can be made to the structure of the invention without departing from the scope or spirit of the invention. In view of the foregoing, it is intended that the invention cover modifications and variations of this invention provided they fall within the scope of the following claims and their equivalents.
This application is a divisional application of and claims priority benefit of U.S. application Ser. No. 11/218,091, filed on Aug. 31, 2005, now allowed. The entirety of the above-mentioned patent application is hereby incorporated by reference herein and made a part of this specification.
Number | Date | Country | |
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Parent | 11218091 | Aug 2005 | US |
Child | 12686600 | US |