公开(公告)号：AU2002357625A1

公开(公告)日：2003-07-30

申请号：AU2002357625

申请日：2002-12-19

Applicant: IBM

Inventor： KODATE MANABU ,  KAI SCHLEUPEN ,  KANZAKI EISUKE

IPC: G02F1/1362 ,  G09G3/36 ,  G02F1/136

Abstract: Disclosed is an image display device to secure uniformity of a screen without luminance unevenness by reducing the number of signal lines and enhancing accuracy in voltages to be applied to respective pixels. In an interval after a scan line Gn+2 is set to selection potential until the scan line Gn+2 is set to non-selection potential, a first display signal having first electric potential to be given to a pixel electrode A is supplied to a signal line, whereby the pixel electrode A and a pixel electrode B are provided with the first electric potential. In addition, after the scan line Gn+2 is set to the non-selection potential, a second display signal having second electric potential to be given to the pixel electrode B is supplied to the signal line, whereby the pixel electrode B is provided with the second electric potential. In this event, a variation of compensative potential for offsetting a difference between an electric potential variation corresponding to parasitic capacitance between the pixel electrode A and scan lines Gn+1 and Gn+2, and an electric potential variation corresponding to parasitic capacitance between the pixel electrode B and the scan line Gn+1, is given to the scan lines Gn+1 and Gn+2 for compensation.

公开(公告)号：CA2476750A1

公开(公告)日：2003-07-24

申请号：CA2476750

申请日：2002-12-19

Applicant: IBM

Inventor： KANZAKI EISUKE ,  KODATE MANABU ,  KAI SCHLEUPEN

IPC: G02F1/1362 ,  G09G3/36 ,  G02F1/136

Abstract: The number of signal lines is reduced, and the uniformity of the screen of a display with no luminance variation is ensured by enhancing the accuracy of the voltage applied to each pixel. (See Fig. 7) A first display signal havin g a first potential to be given to a pixel electrode (A) is supplied to a sign al line during the time t1 from the timing at which a scanning line (Gn+2) goes to a selection potential to the timing at which it goes to a nonselection potential to give the first potential to the pixel electrode (A) and a pixel electrode (B). A second display signal having a second potential to be given to the pixel electrode (B) is supplied to the signal line during the time t2 after the scanning line (Gn+2) goes to the nonselection potential. When the second potential is given to the pixel electrode (B), a compensation potenti al variation for canceling the difference between the potential variation corresponding to the parasitic capacitance between the pixel electrode (A) a nd the scanning lines (Gn+1, Gn+2) and the potential variation corresponding to the parasitic capacitance between the pixel electrode (B) and the scanning line (Gn+1) is given to the scanning line (Gn+1) to effect compensation.