Gamma correction circuit of a liquid crystal display using a mem

Details Gamma correction circuit of a liquid crystal display using a mem Gamma correction circuit of a liquid crystal display using a mem

1995-12-21

1998-08-18

Powell, Mark R.

Computer graphics processing and selective visual display system

Display peripheral interface input device

Light pen for fluid matrix display panel

348674, H04N 5202

Patent

active

057963843

ABSTRACT:
An apparatus comprises an LCD with a gamma correction circuit which compensates for the non-linear characteristics of gamma. The gamma correction circuit includes a memory device for storing programmed data. The programmed data is used to make gamma constant and to make the light transmissivity vary linearly with the input image data. The memory device may be a ROM (Read Only Memory) or a RAM (Random Access Memory). The programmed data may be changed according to the characteristics of the liquid crystal being driven.

REFERENCES:
patent: 4394688 (1983-07-01), Iida et al.
patent: 4786968 (1988-11-01), Kutner
patent: 4805013 (1989-02-01), Dei et al.
patent: 5089890 (1992-02-01), Takayama
patent: 5103298 (1992-04-01), Kashimura et al.
patent: 5123059 (1992-06-01), Hirosawa et al.
patent: 5132796 (1992-07-01), Topper et al.
patent: 5196924 (1993-03-01), Lumelsky et al.
patent: 5243426 (1993-09-01), Murayama et al.
patent: 5282036 (1994-01-01), Worley et al.
patent: 5301021 (1994-04-01), Ogino et al.
patent: 5359342 (1994-10-01), Nakai et al.
patent: 5446831 (1995-08-01), Yamashita et al.
patent: 5453757 (1995-09-01), Date et al.
patent: 5473373 (1995-12-01), Hwung et al.
patent: 5483256 (1996-01-01), Ohi
patent: 5519518 (1996-05-01), Watanabe et al.

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