The present disclosure provides a light homogenizing film, a backlight module and a display device. The light homogenizing film includes a substrate film layer on which a plurality of light homogenizing structures are arranged in an array. The light homogenizing structure includes: a first recess in a regular pyramid shape positioned on a light incident surface of the substrate film layer, and a second recess in a regular pyramid shape positioned on a light emitting surface of the substrate film layer. On a plane where a main body of the substrate film layer is located, an orthographic projection of the second recess completely covers an orthographic projection of the first recess, and the orthographic projections of the first and second recesses are regular polygons which have overlapped centers, the same number of sides and the same orientation.

A video processer controls a display panel including a first liquid crystal panel, a second liquid crystal panel, and a backlight disposed facing one another, and includes a plurality of video processing units configured to control the first liquid crystal panel, the second liquid crystal panel, and the backlight. The plurality of video processing units control at least the first liquid crystal panel among the first liquid crystal panel, the second liquid crystal panel, and the backlight, by dividing the first liquid crystal panel into a plurality of sections. In a case where at least two units of the first liquid crystal panel, the second liquid crystal panel, and the backlight are compared with each other, patterns of the sections controlled by the plurality of video processing units are different from each other.

A light flux controlling member includes a plurality of incident units and an emission unit. The incident unit includes an incidence surface and a reflection surface. At least a part of a side surface of the light flux controlling member is configured such that η2 is smaller than η1, where, in plan view, L is a line connecting a gravity center G1 of the light flux controlling member and a center G2 of the reflection surface, L1 is a line connecting a center P1 of a light-emitting surface and a point P2 on the side surface where light emitted from the center P1, L2 is a line along light emitted from the point P2 to outside, θ1 is an angle between L and L1, and θ2 is an angle between L2 and a line L′ that is parallel to L.

A light flux controlling member includes a plurality of incident units and an emission unit. The incident unit includes an incidence surface and a reflection surface. At least a part of a side surface of the light flux controlling member is configured such that θ2 is smaller than θ1, where L is a line connecting a gravity center G1 of the light flux controlling member and a center G2 of the reflection surface, L1 is a line connecting a center P1 of a light-emitting surface of the light-emitting element and a point P2 on the side surface where light emitted from the center P1, L2 is a line along light emitted from the point P2 to outside, θ1 is an angle between L and L1, and θ2 is an angle between L2 and a line L′ that is parallel to L.

A light emitting device includes a substrate, a plurality of light sources, a partitioning member and a diffuser sheet. The light sources are disposed on an upper surface of the substrate. The partitioning member is disposed on the upper surface of the substrate and including top parts. The partitioning member is reflective. The diffuser sheet is in contact with the top parts of the partitioning member.

A backlight module includes a light source array, a reflector module, and an optical film. The light source array includes a plurality of light sources. The light emitted from the light source can be refracted by the lens unit to obtain a specific light-output angle and uniformity. The reflector module includes a plurality of reflector units. Each reflector unit includes a flat portion, a first wall portion, and a corner wall portion, which have structures and arrangements designed to enable the light source to achieve a display effect of less shadows and better contrast.

A display device includes a backlight module and a display module. The backlight module includes a plurality of light emitting units, a base plate and at least one controller. The light emitting units are disposed on a first surface of the base plate, the controller is disposed on a second surface of the base plate, the second surface is opposite to the first surface, and at least one of the light emitting units is electrically connected to the controller. The display module is disposed on the first surface, and the light emitting units are disposed between the display module and the base plate. The backlight module includes a covering layer, an optical film, and a plurality of pins, the covering layer is disposed on the first surface of the base plate, and the pins are disposed between the covering layer and the optical film.

According to one embodiment, a display device includes a display panel including a display area which displays images, a plurality of light sources irradiating light to display an image on the display area and a control unit which sequentially causes the plurality of light source, which correspond to a plurality of areas divided from the display area, to emit light for each of the areas. The control unit repeatedly causes the light source, which corresponds to an area specified from the plurality of areas based on the image, to emit light during one frame period of displaying an image on the display area.

An optical lens includes an optical transparent body which has an upper surface, a lower surface, a lateral surface and a lower concave portion. The upper surface includes a central upper concave portion, an outwardly-concave curved surface continuous from the central upper concave portion, and an inwardly-concave curved surface continuous from the outwardly-concave curved surface. The lateral surface is connected between the inwardly-concave curved surface and the lower surface. The lower concave portion is recessed from the lower surface.

A display may have a pixel array such as a liquid crystal pixel array. The pixel array may be illuminated with backlight illumination from a direct-lit backlight unit. The backlight unit may include an array of light-emitting diodes (LEDs) on a printed circuit board. The display may have a notch to accommodate an input-output component. Reflective layers may be included in the notch. The backlight may include a color conversion layer with a property that varies as a function of position. The light-emitting diodes may be covered by a slab of encapsulant with recesses in an upper surface.