Patent ID: 8994764
Filing Date: 2015-03-31
Classification: G09G

Abstract:
1. An image display apparatus comprising: a light source that outputs light; a light modulation device that has plural pixels arranged in a matrix and modulates the light from the light source; a projection system that projects the light modulated by the light modulation device onto a projection surface; a pixel image shift unit that can shift positions of images of the pixels of the light modulation device projected on the projection surface, and a control unit that controls the light modulation device and the pixel image shift unit, wherein the control unit can switch whether the pixel image shift unit temporally shifts the positions of the images of the pixels or not, wherein the control unit controls the pixel image shift unit to not temporally shift the positions of the images of the pixels on the projection surface if the resolution of the images to be displayed is equal to or lower than the resolution of the light modulation device and the control unit determines whether the images to be displayed are still images or moving images if resolution of images to be displayed is higher than resolution of the light modulation device, wherein, following determining whether the images to be displayed are still images or moving images based upon the resolution of the images, the control unit controls the pixel image shift unit to temporally shift the positions of the images of the pixels on the projection surface if the images are determined to be still images and not to temporally shift the positions of the images of the pixels on the projection surface if the images to be displayed are determined to be moving images.