VIDEO SIGNAL PROCESSOR OF PLASMA DISPLAY

PROBLEM TO BE SOLVED: To provide a video signal processor which improves the average luminance and image quality at all times even when images of various kinds of video sources are received. SOLUTION: The video signal processor has a luminance control section for controlling the luminance by control...

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Bibliographic Details
Main Author TSUJIHARA SUSUMU
Format Patent
LanguageEnglish
Published 27.01.2005
Edition7
Subjects
ADVERTISING
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
CRYPTOGRAPHY
DISPLAY
EDUCATION
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
SEALS
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Summary:PROBLEM TO BE SOLVED: To provide a video signal processor which improves the average luminance and image quality at all times even when images of various kinds of video sources are received. SOLUTION: The video signal processor has a luminance control section for controlling the luminance by controlling the number of the sustain discharge pulses of a plasma display panel, a level detecting section 4 for detecting the average level of an input video signal and a sustain discharge current detecting section 8 for detecting the sustain discharge current in a driving section 6 of the plasma display panel 7. The luminance and electric power are adaptively controlled in a luminance control section 5 according to the level of the input video signal and the current of the driving section 6, thereby realizing improvement in the average luminance in the limited number of half grays without the occurrence of the abrupt change in gray scales and luminance change according to a video scene. COPYRIGHT: (C)2005,JPO&NCIPI
Bibliography:Application Number: JP20030186834