摘要:
Protective layer of a plasma display panel has base protective layer and particle layer. Base protective layer is formed of a thin film of metal oxide containing at least one of magnesium oxide, strontium oxide, calcium oxide, and barium oxide. Particle layer is formed by sticking, to base protective layer, single crystal particles of magnesium oxide where the peak at 200 to 300 nm is two or more times that at 300 to 550 nm in a cathode luminescence emission spectrum. The panel driving circuit causes initializing discharge for producing wall charge in the first subfield, of a plurality of subfields, causes address discharge for erasing wall charge in address periods of the plurality of subfields, and drives the panel.
摘要:
The present invention improves discharge characteristics of a protective layer in order to provide a PDP that exhibits excellent display performance even if the PDP is of a fine-cell structure. The present invention also provides a manufacturing method for the PDP. In particular, a protective layer 8 is composed of an MgO film layer 81 and an MgO particle layer 82 that is made of MgO particles 16. The MgO particles 16 are formed by burning an MgO precursor and satisfy that a/b≧1. 2, where a denotes a spectrum integral value in a wavelength region of a CL spectrum from 650 nm to 900 nm, exclusive of 900 nm, and b denotes a spectrum integral value in a wavelength region of the CL spectrum from 300 nm to 550 nm, exclusive of 550 nm.
摘要:
A PDP can be driven at low voltage while having a charge retention property in a protection layer, and has favorable image display properties. Additionally, the PDP prevents the occurrence of discharge delay and realizes high-quality image display by performing favorable high-speed driving in a high definition PDP. To achieve this, a surface layer (8) is formed to a film thickness of 1 μm in an oxygen atmosphere having an oxygen partial pressure of 0.025 Pa or more, the surface layer (8) is provided on a face of a dielectric layer (7) on a discharge space side. Furthermore, MgO particles (16) are dispersed on a surface of the surface layer (8). The surface layer (8) has the effects of protecting the dielectric layer (7) from ion bombardment during discharge, reducing the firing voltage, and preventing excessive electron loss. Also, the MgO particles (16) have a high initial electron emission property.
摘要:
Disclosed is a PDP and a manufacturing method therefor having improved display performance even if the PDP is of a fine-cell structure. The PDP has a protective layer that is composed of an MgO film layer and an MgO particle layer made of MgO particles. The MgO particles are formed by burning an MgO precursor and satisfy that a/b≧1.2, where a denotes a spectrum integral value in a wavelength region of a CL spectrum from 650 nm to 900 nm, exclusive of 900 nm, and b denotes a spectrum integral value of a wavelength region of the CL spectrum from 300 nm to 550 nm, exclusive of 550 nm. The MgO particles have many high energy levels in the energy band and thus emission of initial electrons is caused more easily, which leads to suppress discharge delay and also to suppress temperature dependence of the discharge delay.
摘要:
Disclosed herein are a sintered magnesium oxide material which is capable of suppressing the occurrence of splashing during film formation and which is less likely to cause clogging of a supply inlet of a film formation device, a deposition material for PDP-protecting film using the same, and a process for producing the sintered material. The sintered magnesium oxide material contains magnesium oxide, 3 to 50 mass % of an oxide of a Group 2A element other than magnesium in the periodic table, and if necessary, 1000 ppm or less of one or two or more elements selected from the group consisting of aluminum, yttrium, cerium, zirconium, scandium, and chromium, and has a disk-like, elliptical plate-like, polygonal plate-like, or half-moon-like shape or a cubic or rectangular solid shape with rounded apexes.
摘要:
PDP (1) includes front plate (2) and rear plate (10). Front plate (2) has protective layer (9). Rear plate (10) has phosphor layers (15). Protective layer (9) includes a base layer. On the base layer, aggregated particles are dispersed and disposed. The underlying layer includes a first metal oxide and a second metal oxide. In X-ray diffraction analysis, a peak of the base layer lies between a first peak of the first metal oxide and a second peak of the second metal oxide. The first and second metal oxides are two selected from the group consisting of MgO, CaO, SrO, and BaO. The base layer further contains sodium and potassium.
摘要:
A PDP can be driven at low voltage while having a charge retention property in a protection layer, and has favorable image display properties. Additionally, the PDP prevents the occurrence of discharge delay and realizes high-quality image display by performing favorable high-speed driving in a high definition PDP. To achieve this, a surface layer (8) is formed to a film thickness of 1 μm in an oxygen atmosphere having an oxygen partial pressure of 0.025 Pa or more, the surface layer (8) is provided on a face of a dielectric layer (7) on a discharge space side. Furthermore, MgO particles (16) are dispersed on a surface of the surface layer (8). The surface layer (8) has the effects of protecting the dielectric layer (7) from ion bombardment during discharge, reducing the firing voltage, and preventing excessive electron loss. Also, the MgO particles (16) have a high initial electron emission property.
摘要:
A plasma display device has a crystal particle made of MgO single crystal where the cathode luminescence emission spectrum exhibits a desired characteristic, and displays an image by a driving method in the initializing period. The initializing period has the first half for applying the voltage, which gradually increases from a first voltage and to a second voltage, to a second electrode, and the latter half for applying the voltage, which gradually decreases from a third voltage and to a fourth voltage.
摘要:
Disclosed is a PDP and a manufacturing method therefor having improved display performance even if the PDP is of a fine-cell structure. A protective layer of the PDP is composed of an MgO film layer and an MgO particle layer that is made of MgO particles. The MgO particles are formed by burning an MgO precursor and satisfy that a/b≧1, where a denotes a spectrum integral value in a wavelength region of a CL spectrum from 200 nm to 300 nm, exclusive of 300 nm, and b denotes a spectrum integral value in a wavelength region of the CL spectrum from 300 nm to 550 nm, exclusive of 550 nm. With provision of the MgO particle layer, the discharge characteristics of the protective layer improve (shorter discharge delay and less temperature dependence of the discharge delay). Consequently, the PDP is ensured to exhibit excellent display performance.
摘要:
A plasma display device has a crystal particle made of MgO single crystal where the cathode luminescence emission spectrum exhibits a desired characteristic, and displays an image by a driving method in the initializing period. The initializing period has the first half for applying the voltage, which gradually increases from a first voltage and to a second voltage, to a second electrode, and the latter half for applying the voltage, which gradually decreases from a third voltage and to a fourth voltage.