An optical display device that creates a perception of a sky scene in output light, the device comprising: a light source; a reflector block having a reflective member and a reflective and partially transmissive member; a diffuse light generator; a visual cue creating system associated with the reflector block, and an aperture for the output light, the light source arranged to transmit light to the reflector block for reflection between the reflective member and reflective and partially transmissive member, with light transmitted through the reflective and partially transmissive member to the aperture, the diffuse light generator arranged to generate in the output light a diffuse light component to replicate a skylight from the light transmitted from the light source, the visual cue creating system causes light in the reflector to block a visual cue arranged to provide in the output light a visual cue component that observers associate with depth.

A back light module is applied to a lighting keyboard with a plurality of keyswitches and includes a lighting unit, a light guide plate, a light penetrating membrane, a light calibration layer and an adhering component. The light guide plate has an opening used to accommodate the lighting unit. The light penetrating membrane is disposed on the light guide plate. The light calibration layer is disposed on the light penetrating membrane and has a second contour. The adhering component is disposed between the light guide plate and the light penetrating membrane, and has a first contour greater than the second contour. The adhering component includes a front region, a rear region and a hollow region. The front region is covered by the light calibration layer. The rear region is partly covered or not covered by the light calibration layer. The hollow region corresponds to and is larger than the opening.

An electronic device is disclosed, including: a glass plate including a first region and a second region extending from the first region to form a curved surface, wherein at least one predetermined first pattern is formed within at least a portion of the first region, a light emitter disposed adjacent to the second region of the glass plate and configured to emit light from the second region along the first region, a molded pattern layer disposed on the glass plate, the molded pattern layer including second patterns oriented as to face the glass plate, and a support film layer disposed on the molded pattern layer and configured to guide a path of the emitted light from the light emitter to an interior of the molded pattern layer.

Modular lighted display panel assemblies are disclosed that are used to provide modular lighted signage in various applications. The modular lighted display panel assemblies may be linked in a serialized fashion in certain implementations shown herein. In one particular implementation described herein, modular lighted display panel assemblies are linked to provide digital signage on a series of server racks. The techniques described herein allow implementation of some panels without the additional cost and complexity of power modules and/or lighting modules.

The systems and methods of the present disclosure provide film-ready solar signs and assemblies for installations of solar signs.

The light emitting sheet excellent in light guiding performance according to an embodiment of the present disclosure may include: a base film; and a light guide pattern portion in which a pattern set on a surface of the base film is repeatedly formed, wherein the light guide pattern portion has a hexagonal shape.

A household appliance component has a base element with at least one photoluminescent layer and at least one light guide. The light guide is configured to couple in and transmit light containing at least one excitation wavelength of the photoluminescent layer to the photoluminescent layer. An optical switch is assigned to the light guide to route light coupled in the light guide depending on the temperature of the optical switch. Further a household appliance contains the at least one household appliance component.

An optical module for a luminous keyboard includes a mask film having a mask pattern, a patterned layer disposed on the mask film, and a light guide sheet disposed on one side of the mask film. The mask pattern defines a plurality of light-transparent regions respectively corresponding to a plurality of keyswitches of the luminous keyboard. The patterned layer has a light transmittance larger than that of the mask pattern. The light guide sheet has a light-exit edge, and a vertical projection of the light-exit edge of the light guide sheet on the mask film at least partially falls within an outer light-transparent region of the plurality of light-transparent regions. The patterned layer is at least partially located in the outer light-transparent region and adjacent to a region boundary of the outer light-transparent region.

A controlled light distribution element is provided comprising a lightguide medium configured for light propagation, a first functional layer configured as an optical filter layer and disposed on an at least one surface of the lightguide medium, and a second functional 5layer comprising an at least one optically functional pattern, wherein the first functional layer and the second functional layer are rendered with an at least one optical function related to incident light and, in particular, to light incident at an angle equal and/or below the critical angle.

A touch display apparatus including a body, a display module, a light control element, and a touch module is provided. The body has an opening. The display module is disposed in the body and is suitable for emitting a plurality of image beams toward the opening. The light control element is disposed to overlap the opening of the body and is suitable for reflecting the image beams coming from the display module to an imaging space to display an image frame of the display module. The imaging space and the display module are located on two opposite sides of the light control element. The touch module is disposed on one side of the light control element and is configured to recognize a touch operation of a user in the imaging space.