A device comprising: a first display comprising one or more first-display pixels that are configured to operate in a plurality of modes comprising: a first mode in which the one or more first-display pixels absorb or reflect visible light; and a second mode in which the one or more first-display pixels are substantially transparent to visible light; and a second display disposed behind or in front of the first display, the second display configured to emit, modulate, absorb, or reflect visible light; wherein: the first display comprises a partial electrophoretic display comprising a plurality of partial electrophoretic pixels; each first-display pixel, of the plurality of partial electrophoretic pixels, comprising a substantially transparent region and an addressable region coplanar with the transparent region, the addressable region configured to absorb or reflect visible light in the first mode; the second display comprises a partial liquid-crystal display comprising a plurality of partial liquid-crystal pixels, each partial liquid-crystal pixel comprising a substantially transparent region and an addressable region coplanar with the transparent region, the addressable region configured to modulate, absorb, or reflect visible light; the first-display pixels and the second-display pixels are substantially aligned with respect to one another, wherein portions of borders of the second-display pixels are situated directly under portions of borders of corresponding first-display pixels, and the transparent regions of the first-display pixels are aligned with the addressable regions of the corresponding second display pixels; and the device further comprises a segmented backlight disposed behind the second display, wherein the segmented backlight comprises lighted strips and non-lighted strips, wherein the lighted strips are aligned with, and configured to provide illumination for, the addressable regions of the partial liquid-crystal pixels of the second display. a first display comprising one or more first-display pixels that are configured to operate in a plurality of modes comprising: a first mode in which the one or more first-display pixels absorb or reflect visible light; and a second mode in which the one or more first-display pixels are substantially transparent to visible light; and a first mode in which the one or more first-display pixels absorb or reflect visible light; and a second mode in which the one or more first-display pixels are substantially transparent to visible light; and a second display disposed behind or in front of the first display, the second display configured to emit, modulate, absorb, or reflect visible light; wherein: the first display comprises a partial electrophoretic display comprising a plurality of partial electrophoretic pixels; each first-display pixel, of the plurality of partial electrophoretic pixels, comprising a substantially transparent region and an addressable region coplanar with the transparent region, the addressable region configured to absorb or reflect visible light in the first mode; the second display comprises a partial liquid-crystal display comprising a plurality of partial liquid-crystal pixels, each partial liquid-crystal pixel comprising a substantially transparent region and an addressable region coplanar with the transparent region, the addressable region configured to modulate, absorb, or reflect visible light; the first-display pixels and the second-display pixels are substantially aligned with respect to one another, wherein portions of borders of the second-display pixels are situated directly under portions of borders of corresponding first-display pixels, and the transparent regions of the first-display pixels are aligned with the addressable regions of the corresponding second display pixels; and the device further comprises a segmented backlight disposed behind the second display, wherein the segmented backlight comprises lighted strips and non-lighted strips, wherein the lighted strips are aligned with, and configured to provide illumination for, the addressable regions of the partial liquid-crystal pixels of the second display. the first display comprises a partial electrophoretic display comprising a plurality of partial electrophoretic pixels; each first-display pixel, of the plurality of partial electrophoretic pixels, comprising a substantially transparent region and an addressable region coplanar with the transparent region, the addressable region configured to absorb or reflect visible light in the first mode; the second display comprises a partial liquid-crystal display comprising a plurality of partial liquid-crystal pixels, each partial liquid-crystal pixel comprising a substantially transparent region and an addressable region coplanar with the transparent region, the addressable region configured to modulate, absorb, or reflect visible light; the first-display pixels and the second-display pixels are substantially aligned with respect to one another, wherein portions of borders of the second-display pixels are situated directly under portions of borders of corresponding first-display pixels, and the transparent regions of the first-display pixels are aligned with the addressable regions of the corresponding second display pixels; and the device further comprises a segmented backlight disposed behind the second display, wherein the segmented backlight comprises lighted strips and non-lighted strips, wherein the lighted strips are aligned with, and configured to provide illumination for, the addressable regions of the partial liquid-crystal pixels of the second display.