U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Liquid crystal display panel

Patent 7298447 Issued on November 20, 2007. Estimated Expiration Date: Icon_subject April 13, 2020. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Spacers for liquid crystal display device
Patent #: 4640584
Issued on: 02/03/1987
Inventor: Tsubakimoto ,   et al.

Process for producing cells for liquid crystal display devices
Patent #: 4983429
Issued on: 01/08/1991
Inventor: Takayanagi, et al.

Liquid crystal display device having a driving circuit inside the seal boundary
Patent #: 5148301
Issued on: 09/15/1992
Inventor: Sawatsubashi, et al.

Input device having double-layer adhesive conductive connecting portions
Patent #: 5179460
Issued on: 01/12/1993
Inventor: Hinata, et al.

Active matrix liquid crystal display having a peripheral driving circuit element
Patent #: 5323042
Issued on: 06/21/1994
Inventor: Matsumoto

Color liquid crystal device with non-driving electrodes under the sealant for providing an even cell gap
Patent #: 5396356
Issued on: 03/07/1995
Inventor: Fukuchi

Liquid crystal dispaly apparatus with gap adjusting layers located between the display region and driver circuits
Patent #: 5504601
Issued on: 04/02/1996
Inventor: Watanabe, et al.

Semiconductor device having at least two thin film transistors
Patent #: 5572046
Issued on: 11/05/1996
Inventor: Takemura

Liquid crystal display device with seal contacting substrates between two conductive films of dummy electrodes
Patent #: 5619358
Issued on: 04/08/1997
Inventor: Tanaka, et al.

Liquid crystal display device with polymer wall formation rate in peripheral region of display section at least 90%
Patent #: 5621553
Issued on: 04/15/1997
Inventor: Nishiguchi, et al.

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Inventors

Assignee

Application

No. 09548524 filed on 04/13/2000

US Classes:

349/155, Spacer349/151With driving circuit having input and output electrodes on liquid crystal substrate

Examiners

Primary: Nguyen, Cuong H

Attorney, Agent or Firm

Foreign Patent References

  • 58-085478 JP 05/01/1983
  • 62-205320 JP 09/01/1987
  • 63-026631 JP 02/01/1988
  • 02-242230 JP 09/01/1990
  • 03-024634 JP 03/01/1991
  • 05-127181 JP 05/01/1993
  • 6-138488 JP 05/01/1994
  • 06-138488 JP 05/01/1994
  • 6-186579 JP 07/01/1994
  • 06-186588 JP 07/01/1994
  • 06-258661 JP 09/01/1994
  • 06-258662 JP 09/01/1994
  • 6-308505 JP 11/01/1994
  • 06-308510 JP 11/01/1994
  • 08-076145 JP 03/01/1996

International Classes

G02F 1/1339
G02F 1/1345

Abstract

A laminated spacer portion formed by laminating various thin films that constitute thin-film transistors is disposed in peripheral driver circuits. As a result, even in a structure in which part of a sealing member is disposed above the peripheral driver circuits, pressure exerted from spacers in the sealing member is concentrated on the laminated spacer portion, whereby destruction of a thin-film transistor of the peripheral driver circuits can be prevented caused by the pressure from the sealing portion.

Other References

  • Lewis et al, “Driver Circuits for AMLCD's,” Conference Record of the 1994 International Display Research Conference and International Workshops on Active-Matrix LCD's & Display Materials, pp. 56-64, Oct. 1994.
  • “Withdrawal: Selected IBM PS/2 Mobile Systems (300, 700/700C) and Features,” IBM Announcement Letter, No. 193-268, Sep. 8, 1993.
  • Office Action issued in U.S. Appl. No. 09/549,215 dated May 18, 2005.
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