Title:
LUMINANCE CHARACTERISTIC CORRECTING CIRCUIT FOR PDP
Document Type and Number:
Japanese Patent JP3183377
Kind Code:
B2
Abstract:
PURPOSE: To provide a luminance characteristic correcting circuit for correcting the luminance so that the brightness of a frame is linearly changed by judging a prescribed data from a supplied video data, and correcting the video data on the basis of the judgment result.
CONSTITUTION: A judging part 1 is formed of a plurality of decoders, and a prescribed data is judged from a supplied video signal every decoder to output a decode signal. When the supplied video signal is any preset value every decoder 3, a prescribed decode signal 4 is transferred from the corresponding decoder 3 to an arithmetic part 2. The arithmetic part 2 inputs the decode signal 4 of the judging part 1, and adds or subtracts a required value to or from the supplied video signal every decode signal 4 to perform a correction. This luminance characteristic correcting circuit for PDP is used, whereby the image of a personal computer or the image of a television can be displayed as an image with a proper luminance gradation.
Inventors:
Ikuo Makino
Application Number:
JP31736794A
Publication Date:
July 09, 2001
Filing Date:
December 20, 1994
Export Citation:
Assignee:
Fujitsu General Limited
International Classes:
G09G3/28; G09G3/20; G09G3/288; G09G3/296; (IPC1-7): G09G3/28
Domestic Patent References:
| JP6318051A | ||||
| JP6289812A | ||||
| JP51138323A |