The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 10, 2015
Filed:
Sep. 14, 2012
Yukito Saitoh, Minami-Ashigara, JP;
Hiroshi Sato, Minami-Ashigara, JP;
Rikio Inoue, Minami-Ashigara, JP;
Yukito Saitoh, Minami-Ashigara, JP;
Hiroshi Sato, Minami-Ashigara, JP;
Rikio Inoue, Minami-Ashigara, JP;
FUJIFILM Corporation, Tokyo, JP;
Abstract
A liquid crystal display where grayscale inversion is reduced includes a liquid crystal cell having pixel groups, each group comprising a red (R) pixel, a green (G) pixel, a blue (B) pixel, and a white (W) pixel, and drive circuitry that applies a voltage Vand a voltage Vsatisfying the formulae (ia) and (iia) between electrodes defining the G pixel and between electrodes defining the W pixel, respectively, depending on a grayscale level L (where L satisfies 0≦L≦1) in grayscale where substantially the same voltage Vis applied between electrodes defining each of the R, G, and B pixels:for 0<≦0.03,=0 and=2*  (ia)for 0.03<≦0.3, 0.05</(−0.03)<0.86;  (iia)where Tand Teach represent normalized transmittance obtained through normalization of transmittance of each of the G and W pixels assuming that white brightness in a normal direction to a display surface of the liquid crystal display is 1.