| 摘要 |
<p>PURPOSE:To improve an operation characteristic in the comparison in information between windows by changing the brightness of respective windows to different levels when the plural windows are overlapped and preventing the deficiency of the information when the windows are overlapped. CONSTITUTION:The window 1 is a screen assigned to the high brightness (brightness level 2) and the window 2 is a screen assigned to the low brightness (brightness level 1). In the picture element data of the overlapped part, the high brightness level of two picture elements is selected and displayed. In the part where the window 1 has the brightness level (part of the picture element level 2), the level of the window 1 is selected and in the part where the window 1 has not the brightness level (part of the picture element level 0), the level of the window 2 is selected. When more than three windows are overlapped, the same system is performed if the number of the brightness level is increased.</p> |
