Panasonic Corporation

Matsushita Electric Industrial Co., Ltd.

Izumi Toyoda

Junichi Hibino

Kazuhiko Sugimoto

Yuichiro Miyamae

Keiji Horikawa

Yoshihisa Nagasaki

Nobuyuki Shigetoh

Masaki Aoki

Kenji Hasegawa

Yoshinori Tanaka

Hiroshi Setoguchi

Masahiro Higashikawa

The light emitting device according to the present invention includes: a substrate (); a light emitting layer () provided on the substrate (); and a reflective layer () provided between the substrate () and the light emitting layer (). The reflective layer () includes plate-like inorganic oxide particles. The inorganic oxide particles are accumulated on the substrate () in such a way that the largest face of each of the inorganic oxide particles is oriented substantially parallel to the principal plane of the substrate ().

Light emitting device, plasma display panel, and plasma display device

A plasma display device having a panel main body in which a pair of transparent substrates is arranged in opposition so as to form a discharge space between the substrates on at least a front side, barrier ribs are arranged on at least one of the substrates to divide the discharge space into a plurality of spaces, a group of electrodes is arranged on the substrates so as to generate discharge in the discharge space divided with the barrier ribs, and phosphor layers that emit by discharge are provided, in which the phosphor layers are equipped with a green phosphor layer including at least ZnSiO:Mn, a surface of ZnSiO:Mn is coated with magnesium oxide, and a ratio of an Mg element to a Si element on the surface measured with an XPS apparatus is 0.7 to 4.0.

Plasma display device and method of manufacturing green phosphor material for plasma display device

A plasma display device has a panel main body in which a pair of transparent substrates is arranged in opposition so as to form a discharge space between the substrates on at least a front side. Barrier ribs are arranged on at least one of the substrates to divide the discharge space into a plurality of spaces. A group of electrodes is arranged on the substrates so as to generate discharge in the discharge space divided with the barrier ribs. Phosphor layers that emit by discharge are also provided. The phosphor layers are equipped with a green phosphor layer including at least ZnSiO:Mn, a surface of ZnSiO:Mn is coated with aluminum oxide, and a ratio of an Al element to a Si element on the surface measured with an XPS apparatus is 0.6 to 4.0.

Plasma display device with improved luminance

A plasma display device having a panel main body in which a pair of transparent substrates is arranged in opposition so as to form a discharge space between the substrates on at least a front side, barrier ribs are arranged on at least one of the substrates to divide the discharge space into a plurality of spaces, a group of electrodes is arranged on the substrates so as to generate discharge in the discharge space divided with the barrier ribs, and phosphor layers that emit by discharge are provided, in which the phosphor layers are equipped with a green phosphor layer including at least a mixture of ZnSiO:Mn and (Y, Gd)BO:Tb, the surface of the ZnSiO:Mn is coated with aluminum oxide, and the ratio of the Al element to the Si element on the surface measured with an XPS apparatus is 0.6 to 7.0.

Plasma display device

A plasma display device having a panel main body in which a pair of transparent substrates is arranged in opposition so as to form a discharge space between the substrates on at least a front side, barrier ribs are arranged on at least one of the substrates to divide the discharge space into a plurality of spaces, a group of electrodes is arranged on the substrates so as to generate discharge in the discharge space divided with the barrier ribs, and phosphor layers that emit by discharge are provided, in which the phosphor layers are equipped with a green phosphor layer including at least a mixture of ZnSiO:Mn and (Y, Gd)BO:Tb, the surface of the ZnSiO:Mn is coated with magnesium oxide, and the ratio of the Mg element to the Si element on the surface measured with an XPS apparatus is 0.7 to 6.0.

A plasma display panel having an excellent image display quality and high reliability is provided by preventing deterioration of a phosphor due to hydrocarbon gas remaining in the plasma display panel. The plasma display panel includes front panel () and rear panel () disposed opposing each other, and front panel () is provided with a plurality of display electrodes composed of a pair of scan electrodes () and sustain electrodes (), and rear panel () has barrier ribs () forming discharge cells (). In the plasma display panel, rear panel () includes data electrodes () perpendicular to display electrodes composed of a pair of scan electrodes () and sustain electrodes () on substrate (), dielectric layer () covering data electrodes (), reflective layer () containing an oxidation catalyst and covering at least a part of dielectric layer (), and phosphor layer () covering reflective layer ().

Growing community of inventors

Osaka, Japan

Izumi Toyoda