| 摘要 |
PROBLEM TO BE SOLVED: To make realizable a video display device which is capable of performing a video display which is excellent in the display performance of the low gradation area of a video and which has high picture quality and which is capable of attaining a long life of a light source and also whose power consumption is low by improving the utilizing efficiency of light. SOLUTION: LED arraies 30R, 30G, 30B of respective colors are constituted by arranging LED groups in which plural pieces of LEDs of red, green and blue are respectively arranged in a line in plural lines in the horizontal direction. Moreover, a video signal is converted into video signal data which are grouped in a line of the vertical direction of videos by using a video signal processing circuit 21 and picture memories 34R, 34G, 34B or the like and videos of one line are simultaneously displayed in the vertical direction by driving the LED arraies 30R, 30G, 30B so as to emit lights while changing the intensity by the video signal data. Irraditated lights are displayed on a screen 16 by scanning them in the horizontal direction by using a horizontal direction scanning reflection mirror 14 while making it synchronized with the horizontal scanning of the video signal. |
