| 摘要 |
<p>Conversion from an image signal to a subfield code in an image display device is computed without using a conversion table. To this end, the image display device has a base code generation unit (50), a rule generation unit (61), a rule addition unit (62), a higher/lower code generation unit (70), and a display code selection unit (80). The base code generation unit (50) selects a higher gradient base code from a plurality of foundation subfield codes. The rule generation unit (61) generates a first rule for generating new subfield codes from the higher gradient base code. The rule addition unit (62) generates a second rule for setting a subfield for forbidding the subfield codes to be generated by the first rule from becoming non-emitting, on the basis of a prescribed control signal. The higher/lower code generation unit (70) generates a higher gradient code and a lower gradient code, and the display code selection unit (80) selects a display code from the higher gradient code and the lower gradient code.</p> |
