A display apparatus includes an array substrate; a counter substrate facing the array substrate; a liquid crystal layer between the array substrate and the counter substrate; at least one optical compensation film between the array substrate and the counter substrate, extending throughout a display area of the display apparatus; a control electrode between the array substrate and the counter substrate, extending throughout the display area of the display apparatus; and a back light configured to provide light for image display. The liquid crystal layer in a dark state has a first phase retardation. Under control of the control electrode, the at least one optical compensation film gives a second phase retardation when the liquid crystal layer is in the dark state. A sum of the first phase retardation and the second phase retardation is substantially same as an integral multiple of a wavelength of light emitted from the back light.

Display devices are disclosed including tiled components. The tiled components can include any one or more of tiled light board assemblies, tiled diffusers, and tiles patterned light guides. In some embodiments, entire backlight units may be tiled.

A display device includes a display panel, a backlight under the display panel, and an adhesive placed so as to extend over a side face of the display panel and a side face of the backlight. An outer face of the adhesive opposite to a face of the adhesive bonded to the side face of the display panel and the side face of the backlight is formed as a flat face along one or both of the side face of the display panel and the side face of the backlight.

An optical structure film and a light source module are provided. The optical structure film includes multiple optical unit microstructures. Each of the optical unit microstructures has four side surfaces and an inwardly concave beam splitting surface. The beam splitting surface is respectively connected to the side surfaces, and the beam splitting surface has four endpoints when viewed from a front viewing angle. Connection lines of the four endpoints form a rectangle. The beam splitting surface includes at least one beam splitting curved surface. A junction of the at least one beam splitting curved surface and one of the four side surfaces is a first line segment. A projection of a midpoint of an edge of the rectangle on the beam splitting surface overlaps with a relative extreme point of the first line segment.

A liquid crystal display panel includes a first substrate curved in a first direction, a second substrate curved in the first direction and facing the first substrate, a liquid crystal sandwiched between the first substrate and the second substrate, and a seal that adheres the first substrate and the second substrate to each other, and that seals the liquid crystal. When cross-sectionally viewing on a cross-section including the first direction and a display direction, a curved surface conforming to first main surface of the first substrate facing the second substrate includes at least one inflection point in a region surrounded by the seal, and tangent planes of the curved surface at each inner peripheral end of the seal are parallel to each other.

Disclosed herein is a display apparatus having a cooling path provided to enhance cooling efficiency. The display apparatus includes a display panel configured to display images; a light source configured to radiate light toward the display panel; a bottom chassis disposed in rear of the light source; a case provided in rear of the bottom chassis; a circulative cooling path provided as to have air circulated surroundings of the bottom chassis.

A privacy display provides a private image exclusively visible within a viewing cone of a viewbox. The privacy display includes a light guide to guide light, a diffraction grating configured to diffractively couple out a portion of the guided light as diffractively coupled-out light and to direct the diffractively coupled-out light into the viewbox, and a light valve array configured to modulate the diffractively coupled-out light to provide the private image. An extent of the viewbox is determined by a collimation factor of the guided light. A dual-mode privacy display system further includes a broad-angle backlight configured to provide broad-angle light to separately provide a public image visible both inside and outside the viewing cone. The private image may be provided in a privacy mode and the public image may be provided in a public mode of the dual-mode privacy display system.

An overcurrent protection circuit and display drive device, comprising: when input current of a front end corresponding to a logic signal experiences overcurrent, preventing the input current of the front end experiencing overcurrent from being transmitted to a drive chip, thereby preventing damage to the drive chip.

A backlight device is provided and includes case having bottom plate; light guide including front surface as emission surface, rear surface opposed to front surface, and incidence surface provided between front and rear surfaces, rear surface being arranged on bottom plate; and light-emitting elements facing incident surface of light guide, wherein light-emitting elements includes first surface provided at bottom of light-emitting elements, and light-emitting surface facing incidence surface of light guide, first surfaces and rear surface are arranged side by side, and fixed to fixing tape attached over first surfaces and rear surface of light guide, and light-shield is facing fixing tape through light guide.

A naked eye 3D display device is provided. The naked eye 3D display device includes a directional projection screen, a laser light source, a red monochromatic laser light source, a green monochromatic laser light source and a blue monochromatic laser light source. Lights emitted by the three monochromatic laser light sources emit incident light on the directional projection screen with nano-grating pixels at specific angles and specific positions, and the same emergent light fields are formed. The laser light source provides multi-perspective image pixels. The multi-perspective image pixels match a nano-grating pixel array on the directional projection screen. By a direct spatial modulation for the laser projection light, colorful 3D display is achieved. There is no crosstalk between various viewpoints. The naked eye 3D display device has no visual fatigue and has a low cost.