| 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 higher/lower code generation unit (70), and a display code selection unit (80). The base code generation unit (50): generates, from a plurality of foundation subfield codes, deleted base codes in which a specific subfield is set as a non-emitting subfield; and selects, as a higher gradient base code, the deleted base code having a gradient value that is larger than the gradient value of an image signal in a pixel of interest, and closest to the gradient value of the image signal in the pixel of interest. The rule generation unit (61) generates a rule for generating a new subfield code from a higher gradient base code. 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> |
