Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Luminance level control device










Image Number 18 for United States Patent #8130325.

A scene change detecting circuit (1) detects a scene change of video. An average luminance level operating circuit (2) calculates an average luminance level (APL) of a video signal (VD). A luminance overdrive amount calculating circuit (3) calculates a luminance overdrive amount (OD) based on the average luminance level (APL). A time-linked attenuating circuit (7) outputs a power consumption limit correction amount (PA) by attenuating the luminance overdrive amount (OD) with an elapse of time from a point in time of detecting the scene change. An adder (8) adds the power consumption limit correction amount (PA) and a reference power consumption limit value (Lp) to output the addition result as a power consumption limit amount (PL). An ABL circuit (4) calculates a luminance limit amount (BL) based on luminance limit characteristics, the average luminance level (APL) and the power consumption limit amount (PL). A luminance level control circuit (5) determines a display drive condition (BC) based on the luminance limit amount (BL). A PDP drive controller (6) drives a display panel (20) based on the video signal (VD) and the display driving condition (BC).








 
 
  Recently Added Patents
External preparation composition for skin comprising ginseng flower or ginseng seed extracts
Wearable display device
Digital microwave radio link with adaptive data rate
Image forming apparatus, control method of image forming apparatus, and storage medium
Methods and apparatus to determine impressions using distributed demographic information
Data encoding and decoding apparatus and method thereof for verifying data integrity
Session transfer method, application server, and communications system
  Randomly Featured Patents
Transparent resin composition
Machine for the extrusion of thermoplastic polymers and the like comprising an internal mixer
Drying system for producing dried singulated cellulose pulp fibers
Method for injecting molten metal in vertical diecasting machine
Superconducting film and method of manufacturing the same
Drug delivery by polymeric carriers
Clip
Method and arrangement for the production of particles
Regularized dual averaging method for stochastic and online learning
Variable air flow eddy control