Title:
【発明の名称】交流形プラズマディスプレイパネルシステムのタイミング制御回路
Document Type and Number:
Japanese Patent JP2002519951
Kind Code:
A
Abstract:
Disclosed is a timing circuit which produces control signals by which a data interfacing section can simultaneously implement input and output operations of a video data from a frame memory to an address electrode driving section, respectively. A first pulse signal whose pulse duration corresponds to a whole horizontal line time, a second pulse signal which is identical to a delayed first pulse signal by one horizontal line time and a third pulse signal whose pulse duration is one horizontal line time longer than that of the first pulse signal are produced by using a system clock signal of a 2 MHz frequency. During the pulse duration of the first and second pulse signals, first and second clock signals which contains 480 numbers of clock pulses with a period of one horizontal line time are produced by counting another system clock signal of a 25 MHz frequency. During the pulse duration of the third pulse signal, a third clock signal which contains 481 numbers of clock pulses with the period of one horizontal line time is produced by counting the system clock signal of the 25 MHz frequency. The first, second and third clock signals are provided to the frame memory, the address electrode driving section and the data interfacing section, respectively. By means of operations of these three clock signals, the data interfacing section can simultaneously implement the input operation of the video data of one horizontal line from the frame memory and the output operation of the video data to the address electrode driving section.
Inventors:
Seyoung Kim
Application Number:
JP2000557610A
Publication Date:
July 02, 2002
Filing Date:
December 29, 1998
Export Citation:
Assignee:
Thew Electronics Company Limited
International Classes:
G09G3/28; G09G3/285; G09G3/288; G09G3/29; H04N5/66; G09G5/39; G09G5/395; H04N5/70; H04N9/30; G09G5/18; (IPC1-7): H04N5/66; G09G3/288; G09G3/285; G09G3/29
Attorney, Agent or Firm:
Akihide Sugimura (2 outside)