Computer graphics processing and selective visual display system – Display peripheral interface input device – Light pen for fluid matrix display panel
Patent
1996-12-20
1999-09-07
Mengistu, Amare
Computer graphics processing and selective visual display system
Display peripheral interface input device
Light pen for fluid matrix display panel
348645, 348655, 348808, 315381, G09G 510
Patent
active
059494000
ABSTRACT:
An apparatus for correcting a chromaticity diagram by a variable brightness includes: a first grid voltage controller for controlling a first grid voltage to be a voltage of a predetermined level; a first grid voltage detector for detecting the first grid voltage output by the first grid voltage controller; a phase inverter for inverting a phase of a voltage signal detected by the first grid voltage detector; an analog-to-digital converter for converting the inputted voltage signal, which has been phase-inverted by the phase inverter, into a digital signal; a microprocessor for receiving the digital data of the first grid voltage output from the analog-to-digital converter to produce and output error data; a digital-to-analog converter for converting the error data supplied from the microprocessor into an analog signal, and a cut-off controller for receiving the analog signal output from the digital-to-analog converter and correcting a color-difference signal. The RGB characteristic changes and focus changes according to the first grid voltage changes are automatically corrected and color blur and visibility factor lowering can be prevented.
REFERENCES:
patent: 4962418 (1990-10-01), Kamaga
patent: 5060055 (1991-10-01), Kim
patent: 5146323 (1992-09-01), Kobori et al.
patent: 5257096 (1993-10-01), Oshima
patent: 5303071 (1994-04-01), Kakimura
patent: 5311294 (1994-05-01), Cromer et al.
Bushnell Esq. Robert E.
Mengistu Amare
Nguyen Francis N.
Samsung Electronics Co,. Ltd.
LandOfFree
Method and apparatus for correcting a chromaticity diagram by a does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for correcting a chromaticity diagram by a , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for correcting a chromaticity diagram by a will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1808547