Abstract: A printing screen, printing process and method for improving side-bottom ratio are provided. The printing screen mainly comprises a plurality of printing units, wherein each of the printing units comprises a body and a protrusion structure. The body has an ink aperture, and the protrusion structure extends from a surface of the body into the ink aperture. The printing process of a fluorescent layer in a plasma display panel utilizing the said printing screen can enhance the uneven film thickness of the fluorescent layer on the bottom of a discharge chamber, and further improve the side-bottom ratio of the fluorescent layer in a plasma display panel.

Abstract: A flat light source including a first substrate, a second substrate, a sealant, several sets of dielectric pattern and a phosphor layer is provided. The first substrate has electrodes thereon. The sealant is disposed between the first and second substrates to form a space between the first and second substrates and the sealant. These sets of dielectric pattern are formed in the space between the first and second substrates. Each set of dielectric pattern has at least two dielectric strips, and each dielectric strip covers one of the electrodes correspondingly. Each dielectric strip has a top surface and two side surfaces, and the top surface has an uneven contour. The phosphor layer is disposed between the two dielectric strips of each set of dielectric pattern, and the phosphor layer is further disposed on the top surface of the dielectric strips.

Abstract: A flat light source having a main region and an edge region around the main region is provided. The flat light source includes a first substrate, first electrodes, dielectric patterns, a phosphor layer, first phosphor patterns, a second substrate, and a sealant. The first electrodes are disposed on the first substrate and arranged within the main region and the edge region. The dielectric patterns cover the first electrodes. The phosphor layer is disposed between the dielectric patterns in the main region and the edge region. The first phosphor patterns are disposed on the phosphor layer within the edge region. The second substrate is disposed above the first substrate, and the sealant is formed out of the edge region between the first and second substrates so as to bond the two substrates.

Abstract: A flat light source having a main region and an edge region around the main region is provided. The flat light source includes a first substrate, first electrodes, dielectric patterns, a phosphor layer, first phosphor patterns, a second substrate, and a sealant. The first electrodes are disposed on the first substrate and arranged within the main region and the edge region. The dielectric patterns cover the first electrodes. The phosphor layer is disposed between the dielectric patterns in the main region and the edge region. The first phosphor patterns are disposed on the phosphor layer within the edge region. The second substrate is disposed above the first substrate, and the sealant is formed out of the edge region between the first and second substrates so as to bond the two substrates.

Abstract: A printing screen, printing process and method for improving side-bottom ratio are provided. The printing screen mainly comprises a plurality of printing units, wherein each of the printing units comprises a body and a protrusion structure. The body has an ink aperture, and the protrusion structure extends from a surface of the body into the ink aperture. The printing process of a fluorescent layer in a plasma display panel utilizing the said printing screen can enhance the uneven film thickness of the fluorescent layer on the bottom of a discharge chamber, and further improve the side-bottom ratio of the fluorescent layer in a plasma display panel.

Abstract: A flat light source including a first substrate, a second substrate, a sealant, several sets of dielectric pattern and a phosphor layer is provided. The first substrate has electrodes thereon. The sealant is disposed between the first and second substrates to form a space between the first and second substrates and the sealant. These sets of dielectric pattern are formed in the space between the first and second substrates. Each set of dielectric pattern has at least two dielectric strips, and each dielectric strip covers one of the electrodes correspondingly. Each dielectric strip has a top surface and two side surfaces, and the top surface has an uneven contour. The phosphor layer is disposed between the two dielectric strips of each set of dielectric pattern, and the phosphor layer is further disposed on the top surface of the dielectric strips.

Abstract: A planar light source having a first substrate, a plurality of electrode modules, a second substrate, a dielectric spacer, a first phosphor layer, and a discharge gas is provided. The electrode modules are disposed on the first substrate. The second substrate is disposed above the first substrate. The dielectric spacer covers the electrode modules and is connected between the first substrate and the second substrate. The space between the first substrate and the second substrate is divided into a plurality of discharge spaces by the dielectric spacer. The first phosphor layer is disposed in the discharge spaces. The discharge gas is disposed in the discharge spaces. The coating area of the phosphor layer can be increased and cracks in the substrate can be prevented due to the simple structure of the planar light source.

Abstract: A printing screen, printing process and method for improving side-bottom ratio are provided. The printing screen mainly comprises a plurality of printing units, wherein each of the printing units comprises a body and a protrusion structure. The body has an ink aperture, and the protrusion structure extends from a surface of the body into the ink aperture. The printing process of a fluorescent layer in a plasma display panel utilizing the said printing screen can enhance the uneven film thickness of the fluorescent layer on the bottom of a discharge chamber, and further improve the side-bottom ratio of the fluorescent layer in a plasma display panel.

Abstract: A printing screen, printing process and method for improving side-bottom ratio are provided. The printing screen mainly comprises a plurality of printing units, wherein each of the printing units comprises a body and a protrusion structure. The body has an ink aperture, and the protrusion structure extends from a surface of the body into the ink aperture. The printing process of a fluorescent layer in a plasma display panel utilizing the said printing screen can enhance the uneven film thickness of the fluorescent layer on the bottom of a discharge chamber, and further improve the side-bottom ratio of the fluorescent layer in a plasma display panel.