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US 8,299,981 B2Granted
Driving method of plasma display device
AssigneePanasonic Corporation
InventorKazuhiro Yamada
Life of this patent
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Abstract
The driving method of the plasma display device has a plurality of combination sets for display that includes a different number of combinations. The signal levels of a red image signal, a green image signal, and a blue image signal are compared with each other. For an image signal of a color that has a low signal level, a combination set for display is used where the number of combinations is smaller than that in the combination set for display used for an image signal of a color that has a high signal level.
Claims6
A driving method of a plasma display device comprising:
- constituting one field period by a plurality of subfields having a predetermined luminance weight;
- selecting a plurality of combinations of the subfields to create at least a first coding table and a second coding table for display, each of the first coding table and the second coding table have a different number of combinations;
- and
- controlling light emission or no light emission in a discharge cell and displaying gradation, using the first coding table and the second coding table for display,
- wherein respective signal levels of a red image signal, a green image signal, and a blue image signal are compared with each other, and,
- wherein the first coding table is selected for an image signal of a color that has a relatively low signal level lower than a first threshold, the second coding table is selected for an image signal of a color that has a relatively high signal level higher than a second threshold, the number of combinations in the first coding table being smaller than the number of combinations in the second coding table.
3 more elements
Dependencies are inferred from the claim text.