Abstract: A liquid crystal display device proofed against light leaking from a join between backlight module and display panel also has a camera. The display device defines a display area surrounding a light transmission area which allows external light to enter the camera. The backlight module defines a mounting hole corresponding to the light transmission area, the camera being in the mounting hole. Black foam is arranged at the join of the display panel and the backlight module, the black foam has light absorbing properties.

Abstract: A backlight module having better heat dissipation, includes a backboard, a frame coupled to a peripheral area of the backboard, at least one light source, and a thermally conductive layer located on the backboard. The backboard is made of a thermally conductive material. The at least one light source is embedded in the thermally conductive layer and in direct contact with the thermally conductive layer which removes heat as it is generated by the light source.

Abstract: A display apparatus which is not subject to light leakage from a cut edge of a quantum dot layer includes a display panel and a backlighting module. The backlight module includes light source, light guide plate, and quantum dot enhancement layer. The quantum dot enhancement layer has functional and invalidation portions. The functional portion converts light from the light guide plate into predetermined wavelengths. The invalidation portion is formed in the non-display region, and is unable to convert light from the light guide plate into predetermined wavelengths. A distance between a side surface of the invalidation portion and a side surface of the main display region is larger than or equal to a predetermined distance. The effect of the predetermined distance is to prevent the light leaking or transmitted from the invalidation portion from entering the display region at normal viewing angles.

Abstract: A display apparatus utilizing all light output by a light source also includes a display panel with a shield portion, a light guide plate, and a quantum dot enhancement layer. The display panel includes a display portion and a shield portion. The light guide plate is parallel with the display panel and guides light emitted by the light source to the display panel. The quantum dot enhancement layer converts a wavelength of the light and the shield portion is configured to reflect stray or escaping light back into the quantum dot enhancement layer for conversion. The surface of the light guide plate is overlapped with the shield portion for preventing any light leakage and the mixing of light of different wavelengths and thus colors is increased and improved.

Abstract: A display apparatus which is not subject to light leakage from a cut edge of a quantum dot layer includes a display panel and a backlighting module. The backlight module includes light source, light guide plate, and quantum dot enhancement layer. The quantum dot enhancement layer has functional and invalidation portions. The functional portion converts light from the light guide plate into predetermined wavelengths. The invalidation portion is formed in the non-display region, and is unable to convert light from the light guide plate into predetermined wavelengths. A distance between a side surface of the invalidation portion and a side surface of the main display region is larger than or equal to a predetermined distance. The effect of the predetermined distance is to prevent the light leaking or transmitted from the invalidation portion from entering the display region at normal viewing angles.

Abstract: A backlight module having better heat dissipation, includes a backboard, a frame coupled to a peripheral area of the backboard, at least one light source, and a thermally conductive layer located on the backboard. The backboard is made of a thermally conductive material. The at least one light source is embedded in the thermally conductive layer and in direct contact with the thermally conductive layer which removes heat as it is generated by the light source.

Abstract: A display apparatus utilizing all light output by a light source also includes a display panel with a shield portion, a light guide plate, and a quantum dot enhancement layer. The display panel includes a display portion and a shield portion. The light guide plate is parallel with the display panel and guides light emitted by the light source to the display panel. The quantum dot enhancement layer converts a wavelength of the light and the shield portion is configured to reflect stray or escaping light back into the quantum dot enhancement layer for conversion. The surface of the light guide plate is overlapped with the shield portion for preventing any light leakage and the mixing of light of different wavelengths and thus colors is increased and improved.

Abstract: A liquid crystal display includes a first frame, a second frame, a liquid crystal panel, and a backlight module. The backlight module includes a light guide plate, a light source assembly, and a third frame. The light guide plate includes a light incident surface. The third frame defines an access corresponding to the light incident surface. The first and second frames cooperate to receive the liquid crystal panel and the backlight module. The light source assembly is attached to the first frame and located outside of the third frame. The light guide plate is received in the third frame, and the light source assembly faces the light incident surface of the light guide plate via the access.

Abstract: An exemplary backlight module (40) includes a number of point light sources (43) and a light-mixing member (47). The number of point light sources emit light beams of different colors. The light-mixing member mixes the light beams of different colors into white light beams. The light-mixing member includes a light entrance surface (470) opposite to the light sources. The light entrance surface includes a number of recesses (471). The recesses correspond to the number of point light sources. The backlight module has high efficiency of light mixing.

Abstract: A liquid crystal display (2) includes a liquid crystal panel (29); a backlight module (20) providing light beams to the liquid crystal panel. The backlight module includes a light guide plate (23) having at least one light incident surface (231), and a light emitting surface (232) adjoining the at least one light incident surface; at least one light source (21) disposed adjacent to the at least one light incident surface; a prism sheet (25) disposed at the light emitting surface for converging light beams; and a first diffuser (26) disposed at the prism sheet for scattering the light beams therethrough. A haze ratio of the first diffuser changes according to the brightness differentia over a brightness distribution of the prism sheet for attaining a substantially uniform surface light beams output.

Abstract: An exemplary backlight module includes a light guide plate, and a light source positioned for illuminating the light guide plate. The light source includes a plurality of LED units, and each LED unit includes a red LED, two green LEDs, and a blue LED. Each red, green, and blue LED has a center. In each LED unit, the centers of the red LED and the blue LED are at two opposite sides respectively of an imaginary line defined between the centers of the green LEDs.

Abstract: A liquid crystal display (2) includes a liquid crystal panel (29); a backlight module (20) providing light beams to the liquid crystal panel. The backlight module includes a light guide plate (23) having at least one light incident surface (231), and a light emitting surface (232) adjoining the at least one light incident surface; at least one light source (21) disposed adjacent to the at least one light incident surface; a prism sheet (25) disposed at the light emitting surface for converging light beams; and a first diffuser (26) disposed at the prism sheet for scattering the light beams therethrough. A haze ratio of the first diffuser changes according to the brightness differentia over a brightness distribution of the prism sheet for attaining a substantially uniform surface light beams output.

Abstract: An exemplary backlight module includes a frame (16) and a light guide plate (14) positioned in the frame. The frame defines a notch (164), which notch is bounded by a wall of the frame. The light guide plate includes a side surface (141), and an ear (144) extending from the side surface. The ear is received in the notch. A first protrusion (165) protrudes from either the wall of the notch or the ear and contacts the corresponding ear or wall of the notch.

Abstract: An exemplary backlight module includes a light guide plate, and a light source positioned for illuminating the light guide plate. The light source includes a plurality of LED units, and each LED unit includes a red LED, two green LEDs, and a blue LED. Each red, green, and blue LED has a center. In each LED unit, the centers of the red LED and the blue LED are at two opposite sides respectively of an imaginary line defined between the centers of the green LEDs.

Abstract: An exemplary backlight module (40) includes a number of point light sources (43) and a light-mixing member (47). The number of point light sources emit light beams of different colors. The light-mixing member mixes the light beams of different colors into white light beams. The light-mixing member includes a light entrance surface (470) opposite to the light sources. The light entrance surface includes a number of recesses (471). The recesses correspond to the number of point light sources. The backlight module has high efficiency of light mixing.

Abstract: An exemplary backlight module includes a frame (16) and a light guide plate (14) positioned in the frame. The frame defines a notch (164), which notch is bounded by a wall of the frame. The light guide plate includes a side surface (141), and an ear (144) extending from the side surface. The ear is received in the notch. A first protrusion (165) protrudes from either the wall of the notch or the ear and contacts the corresponding ear or wall of the notch.