Patent ID: 7417611

Claim:
A liquid crystal display having liquid crystal sandwiched between a pair of substrates having electrodes for driving the liquid crystal based on respective R, G, and B signals to control transmittance of each of the R, G, and B light components for color display, wherein each of upper limit values of ranges for driving voltages respectively for R display, G display, and B display applied to the liquid crystal is set independently for R light, G light, and B light, without a control voltage applied to the substrates to control the intensity of R, G, and B light simultaneously, an upper limit value for a range of values usable within an entire duration of display as driving voltages for respective R, G, and B light components is set independently for each of R, G, and B light components, among said independently set upper limit values for respective R, G, and B light components, an upper limit value for at least one of the colors differs from the upper limit values for the other colors, a display portion having a plurality of pixels in a matrix form, and a driver circuit for said display portion which supplies a driving voltage signal corresponding to display content to a corresponding one of said pixels in said display portion, wherein said electrode for driving said liquid crystal provided on a first substrate among said pair of substrates is a pixel electrode of a matrix form which is individually formed for each of said pixels and is connected to a thin film transistor, and said driver circuit for the said display portion comprises an RGB driver processing circuit which adjusts an absolute value of a maximum transmittance of liquid crystal of said driving voltage signal which exists for each of R, G, and B so that the maximum transmittance voltage does not exceed a voltage determined according to a transmittance characteristic of each of R, G, and B, and said driving voltage signal in which the maximum transmittance voltage level is adjusted is supplied to a corresponding one of said pixels of said display portion through said thin film transistor.