Abstract: The disclosure provides a 3D image display device. The 3D image display device includes a display module having multiple sub-pixels, a driving module, and an optical module disposed opposite to the display module. The driving module is electrically connected to the sub-pixels. The optical module provides a normal view zone and a reverse view zone. A plurality of view images are arranged in the normal view zone and the reverse view zone. The view images in the normal view zone are arranged in a forward order, the view images in the reverse view zone are arranged in a reverse order, and the width of the normal view zone is greater than the width of the reverse view zone.

Abstract: The disclosure provides a 3D image display device. The 3D image display device includes a display module having multiple sub-pixels, a driving module, and an optical module disposed opposite to the display module. The driving module is electrically connected to the sub-pixels. The optical module provides a normal view zone and a reverse view zone. A plurality of view images are arranged in the normal view zone and the reverse view zone. The view images in the normal view zone are arranged in a forward order, the view images in the reverse view zone are arranged in a reverse order, and the width of the normal view zone is greater than the width of the reverse view zone.

Abstract: A back light module is provided. The back light module includes a first light emitting module, a second light emitting module and an attenuator. The first light emitting module has a light output surface. The second light emitting module is disposed on one side of the first light emitting module opposite to the light output surface. The attenuator is disposed between the first light emitting module and the second light emitting module, and includes a first polarizer having a first absorption axis.

Abstract: A 2D/3D switchable display device comprising a display module, an optical control module and a driving module is disclosed. The optical control module comprises a plurality of optical controlling elements. The display module is disposed opposite to the optical control module and thereby relative information is generated. The driving module provides a corresponding pixel data matrix to the display module based on the optical controlling elements and the relative information.