Electron emission device and driving method thereof

Details Electron emission device and driving method thereof Electron emission device and driving method thereof

2004-09-03

2008-05-27

Shalwala, Bipin (Department: 2629)

Computer graphics processing and selective visual display system

Display driving control circuitry

Intensity or color driving control

C345S063000, C345S074100, C345S076000, C345S102000, C345S204000, C345S589000, C315S169300, C348S673000, C349S031000

Reexamination Certificate

active

07379079

ABSTRACT:
An electro emission device (EED) operated by a driver for modulating the pulse width of a driving pulse according to a pulse width modulation (PWM) clock signal to control the brightness of images. The EED calculates a brightness level of image data indicating the brightness of the whole image for each unit image of a video signal. The image data is stored for each unit image of the video signal. The reference brightness level stored in the look-up table is compared with a calculated brightness level to determine a signal of the PWM clock signal condition. A PWM clock signal is generated according to the signal of the PWM clock signal condition to drive the display panel based on the PWM clock signal.

REFERENCES:
patent: 4649432 (1987-03-01), Watanabe et al.
patent: 5010411 (1991-04-01), Shimada et al.
patent: 6147664 (2000-11-01), Hansen
patent: 6597333 (2003-07-01), Todoroki et al.
patent: 6816676 (2004-11-01), Bianchi et al.
patent: 2003/0016189 (2003-01-01), Abe et al.
patent: 2003/0085905 (2003-05-01), Mori et al.
patent: 2003/0107681 (2003-06-01), Otawara et al.
patent: 2003/0231195 (2003-12-01), Ueno et al.
patent: 2004/0008176 (2004-01-01), Nuimura

Affiliated with

Also associated with

Rating

Electron emission device and driving method thereof does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3987123