Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
ACTIVE MATRIX TYPE LIQUID CRYSTAL DISPLAY
Document Type and Number:
Japanese Patent JPH11258572
Kind Code:
A
Abstract:

To provide a liquid crystal display which has a high numerical aperture and has excellent display quality without residual DC voltage, etc., when driven.

This active matrix type liquid crystal display is composed of a substrate, a scanning wiring 1, a signal wiring 2, switching elements, an insulating flat layer having a flat surface formed on the substrate, and picture element electrodes 5 connected with the switching elements via contact holes arranged on the flat layer. In this arrangement, additional capacitive electrodes 7 are provided between each picture element electrode 5 and a scanning wiring 1a which is either of the preceding stage or the post-stage of the scanning wiring 1 corresponding to each switching element, and thereby a modulating potential which controls the potential of the signal wiring 2 to be impressed on the picture element electrode 5 during ON-period of the switching elements and properly changes the potential from the signal wiring 2 impression on the picture element electrodes 5 during OFF-period of the switching elements, is arranged so as to be impressed on the picture element electrodes 5 from the scanning wiring 1a via the additional capacitance electrode 7.


Inventors:
ASADA SATOSHI
TAKUBO YONEJI
TAMURA TATSUHIKO
Application Number:
JP5857298A
Publication Date:
September 24, 1999
Filing Date:
March 10, 1998
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
G09F9/35; G02F1/133; G02F1/1343; G02F1/136; G02F1/1362; G02F1/1368; G09G3/36; (IPC1-7): G02F1/133; G02F1/1343; G02F1/136; G09F9/35
Attorney, Agent or Firm:
Hiroyuki Ikeuchi (1 person outside)