Patent Number: 6,297,791

Title: Adjustment method of display device

Abstract: A display device performs various types of adjustment by canceling luminance dispersion caused by a light source at the time of optical illumination from the light source and correctly sets a gamma correction characteristic even when optical power from the light source varies or is abnormal. In luminance measurement of a display device, an adjustment method includes measuring transmitted light using a sensor and a reference sensor, calculating correction values on the basis of fluctuation values of reference data derived from measured data by the sensor and the reference data by the reference sensor, correcting the measured data, and thereafter converting the data into gradation values.

Inventors: Naito; Keijiro (Matsumoto, JP), Shinohara; Kazuto (Suwa, JP)

Assignee: Seiko Epson Corporation

International Classification: G09G 3/34 (20060101); G09G 3/36 (20060101); G09G 003/36 ()

Expiration Date: 10/02/2018