07193596 is referenced by 3 patents and cites 25 patents.

A display apparatus has a clock generating circuit, a drive waveform generating circuit, and a display panel. The drive waveform generating circuit is used to generate a drive waveform by using a clock from the clock generating circuit, and the display panel is used to display an image in accordance with the drive waveform. The clock generating circuit generates a clock whose frequency varies continuously. The drive waveform generating circuit drives the display panel by outputting a drive waveform whose frequency varies in accordance with the frequency varying clock so as to spread out noise that the display panel emits. Therefore, peak values of the noise can be reduced.

Title
Display apparatus with reduced noise emission and driving method for display apparatus
Application Number
9/760883
Publication Number
7193596 (B2)
Application Date
January 17, 2001
Publication Date
March 20, 2007
Inventor
Satoshi Watanabe
Kawasaki
JP
Yoshiro Murayasu
Kawasaki
JP
Hiroyuki Shibata
Kawasaki
JP
Agent
Staas & Halsey
Assignee
Hitachi
JP
IPC
G02F 1/33
View Original Source