The field-effect mobility and reliability of a transistor including an oxide semiconductor film are improved. One embodiment of the present invention is a semiconductor device which includes a gate electrode, an insulating film over the gate electrode, an oxide semiconductor film over the insulating film, and a pair of electrodes over the oxide semiconductor film. The oxide semiconductor film includes a first oxide semiconductor film, a second oxide semiconductor film over the first oxide semiconductor film, and a third oxide semiconductor film over the second oxide semiconductor film. The first oxide semiconductor film, the second oxide semiconductor film, and the third oxide semiconductor film include the same element. The second oxide semiconductor film includes a region having lower crystallinity than one or both of the first oxide semiconductor film and the third oxide semiconductor film.

A beam deflector includes a first electrode layer including a plurality of line electrodes extending in a first direction and arranged parallel to each other in a second direction crossing the first direction; a second electrode layer separated from the first electrode layer by a predetermined distance to face the first electrode layer; and a deflection layer between the first electrode layer and the second electrode layer and having a plurality of optically anisotropic molecules controlled by an electric field formed between the first electrode layer and the second electrode layer. Each of the optically anisotropic molecules has an ellipse shape having a major axis and a minor axis, wherein the major axis is arranged to head for the first direction.

A display device includes an array substrate, a counter substrate facing the array substrate at an interval therebetween, a plurality of pixels constituted by the plurality of pixel electrodes and the plurality of color filters, and a plurality of thin film transistors. The plurality of pixels include a plurality of first pixels each having the highest relative luminous efficiency, a plurality of second pixels each having the lowest relative luminous efficiency, and a plurality of third pixels each having relative luminous efficiency lower than the relative luminous efficiency of the first pixels and higher than the relative luminous efficiency of the second pixels, a plurality of spacers include a plurality of spacers having different overlapping relationships with the thin film transistors being overlapping targets.

A method for driving a liquid crystal display device capable of switching between a wide viewing angle and a narrow viewing angle. In a first viewing angle mode, a direct-current common voltage is applied to a common electrode and voltage signals are applied to a first bias electrode and a second bias electrode. In a second viewing angle mode, a direct-current common voltage is applied to the common electrode, a first alternating-current voltage is applied to the first bias electrode and a second alternating-current voltage is applied to the second bias electrode. In addition, in the second viewing angle mode, pixel units covered by each first electrode strip of the first bias electrode have alternating positive and negative polarities, and pixel units covered by each second electrode strip of the second bias electrode have alternating positive and negative polarities.

A device includes a polarization rotator configured to be switchable between operating in two switching states. The device also includes a controller configured to control the polarization rotator to switch between operating in the two switching states at a predetermined switching frequency, to thereby switch, a polarization of a component of an input light having an initial light intensity, between two orthogonal polarizations at the predetermined switching frequency. The device also includes a polarizer coupled with the polarization rotator, and configured to convert the input light transmitted through the polarization rotator into an output light having a light intensity reduced to a predetermined percentage of the initial light intensity of the input light.

According to one embodiment, a display device comprises image signal lines, scanning signal lines, pixels, a display area, pixel electrodes, and common electrodes. The common electrodes are configured to detect an object and to display an image in the display area. The common electrodes include first and second common electrodes which are arranged in a first direction. A first slit is provided between the first and second common electrodes. The first and second common electrodes are supplied a signal different from each other. A second slit is provided in the first common electrode. Each of the first slit and the second slit overlaps one of the image signal lines and extends in an extension direction in which the image signal line extends.

A liquid crystal display device includes a first substrate, a second substrate facing the first substrate, a dual passivation layer disposed between the first substrate and the second substrate. The dual passivation layer includes a first passivation layer and a second passivation layer. A refractive index of the first passivation layer is different from a refractive index of the second passivation layer.

The disclosure provides a display device and a method for manufacturing the same. The display device includes: an array substrate, an opposite substrate and a liquid crystal layer between the array substrate and the opposite substrate. The array substrate includes a first base, and a first electrode and a second electrode of each of the plurality of sub-pixels, the first electrode and the second electrode being located on a side of the first base proximal to the liquid crystal layer; and the opposite substrate includes: a second base and an interference electrode of each of the sub-pixels, the interference electrode is located on a side of the second base proximal to the liquid crystal layer, orthographic projections of the interference electrode of each sub-pixel and the second electrode of said each sub-pixel on the first base at least partially overlaps.

The field-effect mobility and reliability of a transistor including an oxide semiconductor film are improved. One embodiment of the present invention is a semiconductor device which includes a gate electrode, an insulating film over the gate electrode, an oxide semiconductor film over the insulating film, and a pair of electrodes over the oxide semiconductor film. The oxide semiconductor film includes a first oxide semiconductor film, a second oxide semiconductor film over the first oxide semiconductor film, and a third oxide semiconductor film over the second oxide semiconductor film. The first oxide semiconductor film, the second oxide semiconductor film, and the third oxide semiconductor film include the same element. The second oxide semiconductor film includes a region having lower crystallinity than one or both of the first oxide semiconductor film and the third oxide semiconductor film.

A switchable optical device is provided having a first substrate (11), a second substrate (12) and a seal (114). The two substrates (11, 12) and the seal (114) are arranged such that a cell having a cell gap is formed and a switchable medium (10) is located inside the cell gap. The first substrate (11) has a first transparent electrode (21) and the second substrate (12) has a second transparent electrode (22). The electrodes (21, 22) are facing towards the cell gap. The two substrates (11, 12) are arranged such that the first substrate (11) has a first region (71) adjacent to a first edge (41) of the first substrate (11) which does not overlap with the second substrate (12) and the second substrate (12) has a second region (72) which does not overlap with the first substrate (11). A first electrically conducting busbar (31) is arranged in the first region (71) and a second electrically conducting busbar (32) is arranged in the second region (72). A first terminal is electrically connected to the first busbar (31) and a second terminal is electrically connected to the second busbar (32). The first substrate (11) and the second substrate (12) each have an edge deletion (116) in which the respective transparent electrode (21, 22) is removed. The edge deletion (116) is complete on the edges non-adjacent to a busbar (31, 32) and there is no edge deletion or only partial edge deletion on edges adjacent to a busbar (31, 32). Further aspects of the invention relate to a method for designing a switchable optical device, a method for driving a switchable optical device, a method for manufacturing a switchable optical device and a system comprising a switchable optical device and a controller for driving the switchable optical device.