Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1997-09-02
1999-11-09
Saras, Steven J.
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345 89, G09G 336
Patent
active
059823488
ABSTRACT:
In an active matrix display device integrated with a peripheral drive circuit using thin film transistors, when Vgr is a voltage required for one gradation, Ct is capacitance of all pixels, Cgd is capacitance between a gate and a drain, .DELTA.Vg is a difference between ON/OFF gate voltages, and .DELTA.Vs is a feedthrough voltage, the respective parameters satisfy an expression: .vertline.vgr.vertline.>.vertline.(1/Ct)[Cgd.multidot..DELTA.Vg-Ct.multido t..DELTA.Vs].vertline.. According to this, even if dispersion occurs in the characteristics of the thin film transistors arranged for a buffer circuit or an active matrix circuit, it is possible to prevent the dispersion from influencing the gradation display.
REFERENCES:
patent: 5296847 (1994-03-01), Takeda et al.
patent: 5526012 (1996-06-01), Shibahara
Nakanishi Hisao, A Study of CRT Stray Emisson Phenomenon with 2-D-FEM, Technical report of IEICE Japan.
Awane Katunobu
Morita Tatsuo
Nakajima Setsuo
Mengisteab Tewolde
Saras Steven J.
Semiconductor Energy Laboratory Co.
Sharp Kabushiki Kaisha
LandOfFree
Active matrix electro-optical 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 Active matrix electro-optical device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Active matrix electro-optical device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1462548