Patent ID: 8248555
Filing Date: 2012-08-21
Classification: G02B,G02F,G09G

Abstract:
1. A display apparatus comprising: a display panel having a plurality of pixels disposed in a matrix, the plurality of pixels being driven on a basic of an image signal; a first polarizer on one of faces of the display panel; a second polarizer on the other face of the display panel; a surface emitting light source illuminating the display panel from a side of the first polarizer; a third polarizer between the first polarizer and the surface emitting light source; a polarization control element between the first polarizer and the third polarizer and whose orientation of a transmission axis changes according to a control signal; and a control section outputting a control signal that controls orientation of the transmission axis of the polarization control element so that a polarization axis of transmission light of the polarization control element is oriented in a direction crossing the transmission axis of the first polarizer in a part corresponding to a pixel position of black display and is oriented in a direction parallel to the transmission axis of the first polarizer in a part corresponding to a pixel position of white display.