G02B6/008

Backlight unit and liquid crystal display including the same
RE049403 · 2023-01-31 · ·

A liquid crystal display includes a liquid crystal display panel, a backlight and a cover. The backlight includes optical sheets that are configured to be mounted to the cover using a plurality of holes provided on the optical sheet that material to corresponding protrusions provided on the cover. The holes and protrusions are configured to reduce damage or misalignment to the optical sheet that may be caused by heat generated inside the liquid crystal display.

Systems and methods for providing coupled lighting panels

A series of interconnected (directly or indirectly), coupled lighting panels is provided, the coupled lighting panels linked to one another such that various shapes and designs can be created using various arrangements of the coupled lighting panels, the lighting panels of some embodiments adapted to avoid dark spots proximate to lighting circuitry disposed therein. The lighting panels can be luminaires, and may be provided in various geometric shapes, having various dimensionalities (e.g., a flat 2 dimensional shape, or a 3 dimensional shape). Various control systems, connectors, housings, frames, and lighting systems are also described.

SYSTEMS AND METHODS FOR PROVIDING COUPLED LIGHTING PANELS
20230161097 · 2023-05-25 ·

A series of interconnected (directly or indirectly), coupled lighting panels is provided, the coupled lighting panels linked to one another such that various shapes and designs can be created using various arrangements of the coupled lighting panels, the lighting panels of some embodiments adapted to avoid dark spots proximate to lighting circuitry disposed therein. The lighting panels can be luminaires, and may be provided in various geometric shapes, having various dimensionalities (e.g., a flat 2 dimensional shape, or a 3 dimensional shape). Various control systems, connectors, housings, frames, and lighting systems are also described.

METHOD FOR FABRICATING A SUBSTRATE-GUIDED OPTICAL DEVICE
20170363799 · 2017-12-21 ·

A method is described for fabricating an optical device that includes a light waves-transmitting substrate having at least two major surfaces and edges and a plurality of partially reflecting surfaces carried by the substrate, wherein the partially reflecting surfaces are parallel to each other and not parallel to any of the edges of the substrate. The method includes providing at least one transparent flat plate and plates having partially reflecting surfaces and optically attaching together the flat plates so as to create a stacked, staggered form. From the stacked, staggered form, at least one segment is sliced off by cutting across several plates and the segment is ground and polished to produce the light waves-transmitting substrate. The plates are optically attached to each other by an optically adhesive-free process.

BACKLIGHT MODULE AND DISPLAY DEVICE
20230194771 · 2023-06-22 ·

A backlight module and a display device are disclosed. The backlight module includes a back plate and a plurality of light plate assemblies arranged on the back plate, and there is a seam between every two adjacent light plate assemblies. The backlight module further includes at least one light guide plate and at least one side light source. The light guide plate is arranged at the seam. The side light source corresponds to the light guide plate, is located on the side of the light guide plate, and provides a light source for the light guide plate.

Lighting device and display apparatus

A lighting device used as a backlight of a display apparatus includes multiple light guide plates, and a light source located near an entrance edge of each light guide plate to emit light. A gap is provided between the light guide plates, and the position of the entrance edge is fixed among the edges of the light guide plate. If the light guide plates are expanded in accordance with a change in temperature or humidity, the entrance edge do not move while the light guide plates are expanded so as to approach each other. Since the light guide plate does not hit the light source and the amount of expansion of the light guide plates is absorbed into the gap, the light source may be arranged as close as possible to the entrance edge of the light guide plate in the lighting device.

Light guide plate and assembly module using the same and backlight module

A light guide plate includes a light incident section and a light guiding section. The light incident section includes a light incident surface configured to receive light beams emitted from a light source, a top surface adjacent to the light incident surface, a first bottom surface oppose to the top surface. The light guiding section includes a main light emitting surface, a connecting surface connecting the main light emitting surface with the top surface, a second bottom surface opposite to the main light emitting surface and connecting with the first bottom surface, and a contacting surface connecting with the main light emitting surface and the second bottom surface. A step is formed at a junction of the light incident section and the light guiding section, and the connecting surface and the top surface define an accommodating space.

THIN BACKLIGHT WITH REDUCED BEZEL WIDTH
20170227703 · 2017-08-10 ·

A backlight includes a first lightguide having a first portion and a second portion, wherein the second portion is dimensioned smaller that the first portion so as to form a rim along at least a part of the first light guide. At least one light source is positioned under the rim and separated from the first lightguide by a space, where a majority of the light emitted by the at least one light source being along a first axis of the at least one light source. The at least one light source is arranged to position the at least one axis at an angle away from a center of the lightguide in a plane parallel to the rim.

Backlight unit and a display device
09726801 · 2017-08-08 · ·

The present invention relates to the field of display technology, particularly to a backlight unit and a display device. The backlight unit according to the present invention comprises: a light guide plate, the light guide plate comprising a first inclined side and an upper bottom surface and a lower bottom surface parallel with each other, wherein the angle between the first inclined side and the lower bottom surface is a sharp angle; a light emitting element arranged below the first inclined side; and a first reflector arranged on a surface of the first inclined side of the light guide plate. Compared with the prior art, the thickness of such a backlight unit can be kept relatively small, which facilitates lighter and thinner design of the liquid crystal display.

RECEPTACLE ASSEMBLY HAVING A LIGHT PIPE ASSEMBLY

A receptacle assembly includes a receptacle housing having panels defining a housing cavity receiving a pluggable module. The panels are conductive to provide electromagnetic interference shielding. The receptacle housing has a bottom mounted to a circuit board. A communication module is received in the housing cavity and mounted to the circuit board. The communication module includes a communication connector interfacing with the pluggable module. The receptacle assembly includes a light pipe assembly coupled to the receptacle housing having has a plurality of flexible light pipes each extending between a light-receiving end and a light-emitting end. The light-receiving end is positioned proximate to the bottom to receive light from a light-emitting device mounted to the circuit board. The light-emitting end is provided proximate to the front end of the receptacle housing for displaying a status indicator for the communication connector.