An object of the present invention is to provide a liquid crystal display element using a liquid crystal composition having negative dielectric anisotropy, which is capable of realizing excellent display properties by being used in an FFS mode liquid crystal display element without deteriorating various properties, as a liquid crystal display element, such as dielectric anisotropy, viscosity, a nematic phase upper limit temperature, nematic phase stability at low temperature, and γ.sub.1, and burn-in characteristics of the display element.

Provided is an FFS mode liquid crystal display element using an n-type liquid crystal composition so as to achieve the above object.

A window substrate for protecting an electronic display device, the window substrate includes: a first substrate; a second substrate; and an interlayer having opposed sides disposed between the first substrate and the second substrate, with one side of the interlayer being in contact with the first substrate, and the other side of the interlayer being in contact with the second substrate, wherein the first substrate has a first thickness, the second substrate has a second thickness, and the interlayer has a third thickness, and wherein the sum of the first thickness, the second thickness, and the third thickness is about 190 μm or less.

A liquid crystal device includes a reflection-type liquid crystal panel in which a first substrate provided with a reflective layer and a second substrate having light-transmissivity face each other via a liquid crystal layer. In the liquid crystal device, a λ/4 phase difference plate is arranged in an optical path in which light incident from the second substrate side is reflected by the reflective layer and emitted from the second substrate side, and a phase difference compensation layer such as a C plate and O plate provided integrally with the liquid crystal panel is provided in the optical path. The λ/4 phase difference plate is an inorganic material film provided on a second end surface facing the second substrate in the polarized light separating element. The phase difference compensation layer is an inorganic material film provided on a surface of the second substrate opposite to the liquid crystal layer.

An optical structure, a display device and a method for manufacturing an optical structure and are provided. The optical structure includes a first positioning plate, a second positioning plate and a liquid crystal layer. The first positioning plate and the second positioning plate are oppositely disposed, and the liquid crystal layer is arranged between the first positioning plate and the second positioning plate. A surface of the first positioning plate close to the liquid crystal layer is provided with a plurality of protruding structures protruding toward the liquid crystal layer.

A curved screen and a display device are disclosed. The curved screen includes a first substrate, a second substrate, and a liquid crystal layer disposed between the first and second substrates. The curved screen is bent and concave along the first substrate. The first substrate includes a substrate and a planarization layer disposed on a concave side of the substrate. A plurality of grooves are defined in the planarization layer and arranged at intervals along a direction of a bending edge of the curved screen, and extend in parallel along a direction of a non-bending edge. The depth of each groove before bending is greater than after bending.

According to one embodiment, a display device includes a liquid crystal display panel including a first substrate having a first length and a second substrate having a second length, a dimming panel including a third substrate having a third length and a fourth substrate having a fourth length, wherein the third length is greater than the first length, the second length and the fourth length, the first length is greater than the second length, the third thickness of the third substrate is greater than the first thickness of the first substrate, and the second thickness of the second substrate is greater than the first thickness.

Provided are a liquid crystal member and a millimeter-wave modulation element with the liquid crystal member including a liquid crystal layer having a non-flat surface. The liquid crystal member includes a liquid crystal layer in which a liquid crystal composition which contains a liquid crystal compound having a polymerizable group and a polymerization initiator is immobilized in an aligned state, with at least one main surface of two main surfaces of the liquid crystal layer at both ends in a thickness direction is a non-flat surface having various shapes in a region on the non-flat surface side of one of the two main surfaces, a slow axis of the liquid crystal compound has an equal angle with respect to an adjacent non-flat surface, and in a region on the other main surface side, slow axes of the liquid crystal compound are parallel to each other.

A liquid crystal display panel which is viewable from a greater range of oblique viewing angles without apparent loss of contrast or color intensity includes a thin film transistor substrate, a color filter substrate, a liquid crystal layer between the color filter substrate and the thin film transistor substrate. The color filter substrate includes a glass substrate, a black matrix, and a color filter layer on the glass substrate. A surface of the glass substrate defines a plurality of grooves having different depths. Both the black matrix and the color filter layer are in the grooves. A thickness of the liquid crystal layer changes with depths of the plurality of grooves. A display device and a method for making the liquid crystal display panel are also provided.

Provided are a display device and a fabrication method thereof. The display device includes a first substrate and a second substrate having one surface opposite to one surface of the first substrate. The first substrate includes a first-one portion that overlaps the second substrate in a thickness direction and a first-two portion that does not overlap the second substrate. The second substrate includes a second portion that overlaps the first substrate in the thickness direction. The first-two portion has a greater thickness than the first-one portion. The second portion includes a second-one portion that overlaps the first-one portion in the thickness direction and a second-two portion disposed between the second-one portion and the first-two portion in a plan view. The second-two portion has a greater thickness than the second-one portion. The second-two portion is disposed so as not to overlap the first-two portion in the thickness direction.

According to one embodiment, a display device includes a first transparent substrate including a first main surface and a second main surface, a second transparent substrate including a third main surface, pixels arrayed in a matrix, a sealant surrounding the pixels without a break, a polymer dispersed liquid crystal layer sealed by the sealant, a third transparent substrate including a first end portion and bonded to the first main surface, and first light sources opposed to the first end portion.