Display device

Details Display device Display device

2007-11-20

2007-11-20

Hjerpe, Richard (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S087000, C345S098000

Reexamination Certificate

active

10735048

ABSTRACT:
In an active matrix display device using an SRAM, the number of transistors configuring the SRAM circuit is large. Therefore, the transistors cannot be embedded in a pixel when a pixel area is small, otherwise an aperture ratio is reduced. In view of the foregoing, it is an object of the present invention to provide a display device without a refreshing operation and thus with small power consumption. According to the invention, a display device including a pixel which comprises a switching element and a nonvolatile memory element is provided. When a still image is displayed by utilizing a ferroelectric element as a nonvolatile memory element and storing a signal, writing is not required per frame. Further, as the ferroelectric element occupies a small area, a memory circuit can be incorporated without decreasing an aperture ratio.

REFERENCES:
patent: 5349366 (1994-09-01), Yamazaki et al.
patent: 5712652 (1998-01-01), Sato et al.
patent: 6166792 (2000-12-01), Miyawaki et al.
patent: 2001/0007447 (2001-07-01), Tanaka et al.
patent: 2001/0038555 (2001-11-01), Kato
patent: 2002/0113268 (2002-08-01), Koyama et al.
patent: 2002/0175888 (2002-11-01), Murade
patent: 2002/0175907 (2002-11-01), Sekiya et al.
patent: 08-286170 (1996-11-01), None

Affiliated with

Also associated with

Rating

Display device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Display device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Display device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3824009