Full-color plasma display panel that uses different discharge gases to emit different colored light

A method of forming a plasma display panel, the plasma display panel comprising a back substrate and a front substrate, the method comprising:

• forming a plurality of barrier ribs on the back substrate for defining a plurality of discharge space groups, each group comprising a first discharge space, a second discharge space and a third discharge space, each discharge space comprising a upper opening on an upper side of the discharge space and a lower opening on a lower side of the discharge space;
• forming a plurality of air-locking ribs on the back substrate to seal the lower opening of the first discharge space, the upper opening and lower opening of the second discharge space, and the upper opening of the third discharge space;
• forming a first wall on the back substrate on an upper side of the plurality of the discharge space groups, the first wall and the adjacent air-locking ribs defining a first channel which is accessible through each of the upper openings of the first discharge spaces;
• forming a second wall on the back substrate on a lower side of the plurality of the discharge space groups, the second wall and the adjacent air-locking ribs defining a second channel which is accessible through each of the lower openings of the third discharge spaces;
• in an enclosed chamber, sealing the front substrate and the back substrate to form a space between the back substrate and the front substrate, the enclosed chamber filled with a second discharge gas so as to fill the first discharge space, the second discharge space, the third discharge space, the first channel, and the second channel with the second discharge gas;
• extracting the second discharge gas from the first channel and from the first discharge space through the first channel, and filling the first channel and the first discharge space with a first discharge gas;
• and
• extracting the second discharge gas from the second channel and from the third discharge space through the second channel, and filling the second channel and the third discharge space with a third discharge gas.

A plasma display panel comprising:

• a back substrate;
• a front substrate positioned parallel to and spaced apart from the back substrate and defining a plasma space between the back substrate and the front substrate;
• a first wall positioned along an upper side of the plasma space;
• a second wall positioned along a lower side of the plasma space;
• a plurality of barrier ribs positioned within the plasma space for defining a discharge space group, the discharge space group comprising a first discharge space, a second discharge space, and a third discharge space, the first discharge space having a first opening formed near the first wall and a second opening formed near the second wall, the second discharge space having a third opening formed near the first wall and a fourth opening formed near the second wall, the third discharge space having a fifth opening formed near the first wall and a sixth opening formed near the second wall;
• a first air-locking rib positioned between the first wall and the discharge space group to seal the third opening of the second discharge space and the fifth opening of the third discharge space, the first wall and the first air-locking rib defining a first channel to communicate with the first discharge space through the first opening;
• a second air-locking rib positioned between the second wall and the discharge space group to seal the second opening of the first discharge space and fourth opening of the second discharge space, the second wall and the second air-locking rib defining a second channel to communicate with the third discharge space through the sixth opening;
• and
• a first discharge gas, a second discharge gas, and a third discharge gas for emitting different colored light being respectively filled into the first discharge space, the second discharge space, and the third discharge space.