Provided is an azo compound represented by formula (1A). L.sup.1 and L.sup.2 each represent a divalent linking group or a single bond. y represents 1 or 2. p and q each represent 0 or 1, and at least one of p and q is 1. X represents an oxygen atom or NR.sup.5, and R.sup.5 represents a hydrogen atom or an aliphatic hydrocarbon group. R.sup.12, R.sup.13, and R.sup.14 each represent an aliphatic hydrocarbon group or the like, and may each have a polymerizable group. Q represents a single bond or a group selected from the group consisting of OC(O), C(O)O, CC, CHCH, NN, NHC(O), and C(O)NH. Ar.sup.1, Ar.sup.2, and Ar.sup.3 each represent a 1,4-phenylene group or a divalent sulfur-containing aromatic heterocyclic group. When y is 2, two Ar.sup.3s may be the same or different.

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A display module, a manufacturing process thereof, and a display device are provided. In the manufacturing process of the display module, a substrate glass of a display panel is thinned to form an ultra-thin glass with a predetermined thickness, which replaces a conventional polyimide (PI) flexible film layer that is used to support the panel, and thus a laser lift-off process is not required to separate the substrate glass and the PI flexible film layer. It solves a problem that a laser is required to peel the substrate glass and a peeling effect is not good in current manufacturing process of a flexible OLED display screen.

An anti-peeping module provided by an embodiment of the application includes a plurality of light transmitting films, each including at least two light transmitting sub-films having different refractive indexes which are disposed in a laminated manner, and a first optical path modulating layer on one side of the plurality of light transmitting films, the first optical path modulating layer comprising a plurality of zigzag structures, the and being configured to allow light entering into the plurality of light transmitting films at a Brewster incident angle to exit from the anti-peeping module in a travelling direction perpendicular to a plane where the anti-peeping module is located.

A display device includes: a display panel including a front surface and a rear surface, the rear side being opposite to the front side; a front stacked structure on the front surface including a front bonding member disposed on the front surface; and a rear stacked structure on the rear surface including a rear bonding member disposed on the rear surface. A loss tangent of the front bonding member has a value greater than a loss tangent of the rear bonding member, the loss tangent being represented by an equation: (loss tangent)=(loss modulus)/(storage modulus), wherein the loss modulus refers to energy lost by viscosity of a material, and the storage modulus refers to energy stored without loss by elasticity of the material.

A display device comprises a display panel and an optical plate. The display panel comprises a surface comprising a display area and a non-display area, the display panel further comprising a bending portion that is bent and a non-bending portion that is not bent. The display panel comprises: a base substrate, an array of pixels formed over the base substrate, and electrically conductive lines disposed over the base substrate and electrically connecting the array of pixels to an exterior device, the electrically conductive lines comprising at least one extension formed in the bending portion and overlapping the non-display area when viewed in a thickness direction of the display panel. The optical plate is disposed over the display panel, and comprises: a first optical plate portion covering the display area, and a second optical plate portion covering the at least one extension of the electrically conductive lines.

A foldable display device includes a plurality of layers bonded to each other. The plurality of layers includes a light emitting diode substrate layer, a cover window layer including a window film through which light from a first surface of the light emitting diode substrate layer is emitted, a shock-absorber layer located on a second surface of the light emitting diode substrate layer. The second surface is a surface opposite to the first surface. A dimension of the light emitting diode substrate layer measured along a folding axis is larger than a dimension of at least one layer in the plurality of layers.

A display panel comprises a display area, a bending area and a bonding area. The bending area is connected to the bonding area and the display area, the bonding area is disposed under the display area, and the bonding area is attached to the display area by at least one glass substrate. A glass substrate is substituted for current support layer in the bonding area. The glass substrate has a greater hardness compared to the support layer, and can reduce damages to the terminals in the bonding area caused by an external force

A display assembly, an electronic device, and a method for assembling a display assembly are provided. The display assembly includes a flexible screen, a cover plate, and a capacitive fingerprint sensor film. The capacitive fingerprint sensor film is disposed between the cover plate and the flexible screen and covers a display surface of the flexible screen, to sense a fingerprint of a finger in contact with the cover plate.

Display structures for controlling viewing angle color shift are described. In various embodiments, polarization sensitive diffusers, independent controlled cathode thicknesses, filtermasks, and color filters are described.

Embodiments described herein relate to three dimensional (3D) display apparatus. In one embodiment, the 3D display apparatus include a polychromatic backlight unit comprising an emissive light source, a collimator comprising a plurality of collimating features coupled to and in optical communication with the backlight unit, and a diffractive element comprising a plurality of gratings coupled to and in optical communication with the collimator. In other embodiments, the 3D display apparatus includes a monochromatic backlight unit, an LCD module, and a quantum dot containing film.