Method of determining color temperature for color display device

Details Method of determining color temperature for color display device Method of determining color temperature for color display device

1996-10-31

1998-08-11

Bennett, G. Bradley

Thermal measuring and testing

Temperature measurement

Nonelectrical, nonmagnetic, or nonmechanical temperature...

345150, 348655, 364526, G01J 100

Patent

active

057917817

ABSTRACT:
In determining a color temperature in a color display device, the present invention comprises the steps of: producing a patch set I composed of a plurality of patches which appear gray under respective illuminant components and producing a patch set II composed of a plurality of patches to be a metameric pair with a neutral gray emitted from the respective illuminant components, under a specific illuminant; visually detecting peripheral illuminant components by selecting patch having identical color to that of patch having an equivalent energy spectral reflection degree in the patch set I; and determining a color temperature of the display device from the patch set II by using the detected illuminant component. Thus, the present invention provides color temperature information in producing a profile of the device required by a CMS by determining the color temperature of the display device considering the peripheral illuminant component without using a colorimeter.

REFERENCES:
patent: 3573352 (1971-04-01), Fujita
patent: 4665496 (1987-05-01), Ott
patent: 5023814 (1991-06-01), Guillemin
patent: 5504524 (1996-04-01), Lu et al.
patent: 5619427 (1997-04-01), Ohkubo
patent: 5636143 (1997-06-01), Takahashi

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