Title:
表示装置の電力レベル制御のための方法及び装置
Document Type and Number:
Japanese Patent JP4642319
Kind Code:
B2
Abstract:
Plasma Display Panels (PDP) are becoming more and more interesting for TV technology. One important criterion for picture quality is the Peak White Enhancement Factor (PWEF). From a previous patent application of the applicant it is known to have a table of power level modes in a control unit for the display device. The average picture power value is measured and a corresponding power level mode will be selected from the table for sub-field coding. The power level modes have been made variable in respect to a number of parameters, namely: the number of sub-fields the sub-field type the sub-field positioning the sub-field weight the sub-field pre-scaling a factor for the sub-field weights which is used to vary the amount of small pulses generated during each sub-field. According to the invention it is now proposed to use one or both of the following parameters in addition for varying the power level modes: the sustain frequency the sustain pulse slope.
More Like This:
Inventors:
Weitburg, Sebastian
Halalto
Correa, carlos
Halalto
Correa, carlos
Application Number:
JP2002516752A
Publication Date:
March 02, 2011
Filing Date:
July 23, 2001
Export Citation:
Assignee:
Thomson Licensing
International Classes:
H04N5/66; G09G1/00; G09G3/20; G09G3/294; G09G3/296
Domestic Patent References:
| JP8286636A | ||||
| JP6259034A | ||||
| JP10187095A | ||||
| JP10187084A |
Attorney, Agent or Firm:
Tadahiko Ito
Shinsuke Onuki
Tadashige Ito
Naoki Fujimura
Shinsuke Onuki
Tadashige Ito
Naoki Fujimura