| 摘要 |
PURPOSE:To produce and display the picture natural and real, by producing the luminance signal corresponding to the graphic information to be displayed and conrolling the luminance signal with the luminance modulation signal and the freqrency characteristic control signal. CONSTITUTION:The luminance signal corresponding to the graphic information to be displayed is produced, and the luminance modulation signal generating sircuit 10B producing the luminance modulation signal changed in the specified area and the frequency characteristic control signal generating circuit 10F producing the frequency characteristic control signal are provided to control the luminance modulation and frequency control of the luminance signal. By controlling the luminance modulation and the frequency characteristic for the luminance level of video, it is possible to make vague the visual field and to realize the visual field corresponding to the natural environment and visual distance, allowing to produce and display the real and natural picture. |
