Computer graphics processing and selective visual display system – Display driving control circuitry – Display power source
Reexamination Certificate
2007-12-18
2007-12-18
Hjerpe, Richard (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
Display power source
C345S087000, C345S211000
Reexamination Certificate
active
10314253
ABSTRACT:
A liquid crystal display device that are adapted to display a certain information to a user when no signal is input after a power was applied to the liquid crystal display device. In the device, a liquid crystal display panel has pixel electrodes arranged in a matrix type. A timing controller generates and outputs control signals for driving the liquid crystal display panel in response to a timing synchronizing signal inputted from the exterior thereof, and re-arranges and outputs an input data. A drive circuit is connected between the liquid crystal display panel and the timing controller to display a data inputted from the timing controller on the liquid crystal display panel in response to the control signal. An oscillator generates a pre-synchronizing signal having a desired frequency to apply the same to the timing controller. A signal presence determiner compares the timing synchronizing signal with the pre-synchronizing signal to generate a determining signal indicating an input existence of the timing synchronizing signal. A control signal generator generates a control signal on the basis of the pre-synchronizing signal in response to a determining signal indicating no input of the timing synchronizing signal. A data storage device stores a certain picture data and outputs the picture data to the drive circuit in response to the determining signal indicating no input of the timing synchronizing signal.
REFERENCES:
patent: 4758831 (1988-07-01), Kasahara et al.
patent: 4947264 (1990-08-01), Narusawa
patent: 5311316 (1994-05-01), Sato
patent: 5331342 (1994-07-01), Shimatani et al.
patent: 5335074 (1994-08-01), Stec
patent: 5731798 (1998-03-01), Shin
patent: 5757365 (1998-05-01), Ho
patent: 5864336 (1999-01-01), Yano
patent: 6020879 (2000-02-01), Nakabayashi
patent: 6069619 (2000-05-01), Kim
patent: 9-191435 (1997-07-01), None
patent: 10-319916 (1998-12-01), None
Hjerpe Richard
LG Phillips LCD Co., Ltd
McKenna Long & Aldridge LLP
Nguyen Kimnhung
LandOfFree
Liquid crystal display 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 Liquid crystal display and driving method thereof, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid crystal display and driving method thereof will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3827744