A device for protecting a television screen comprising having a mount wherein the mount is configured to engage the television; a cylinder configured to attach to the mount such that the cylinder will be positioned at the screen side of the television; and a protective material configured to coil around the cylinder, wherein the protective material is further configured to unravel over the television screen.

A projection device of the present disclosure includes a projection unit for radiating on a projection target object in a time-divided manner, in one frame period of a video, a visible light image that is based on a video signal and an invisible light image for acquiring predetermined information, and a controller for controlling an order of a radiation period for the visible light image and a radiation period for the invisible light image in the one frame period. The controller includes, as a radiation mode, a first mode for radiating the invisible light image in a manner of distributing the invisible light image over a plurality of periods within the one frame period.

To record and reproduce sound and an image so that content which entertains a viewer and which prevents the viewer from being bored is provided while realistic sensation is provided.

Upon recording, image information shot by a plurality of cameras is recorded together with position and posture information of each camera, and acoustic information from a plurality of sound sources is recorded together with position information of each sound source. Upon reproduction, an image at a position of a viewer (eye direction) is reproduced, and a sound image is localized at the position of the viewer so that content which entertains the viewer and which prevents the viewer from being bored is provided while sound with realistic sensation is provided.

A flat panel display device comprising a backboard and a display panel fitted therewith is provided. The edge of the backboard is structured as a barrier wall extending perpendicular to the body of the backboard. A stepped groove is arranged on the interior face of the barrier wall for supporting the display panel and forming accommodating space between the display panel and the body of the backboard. The stepped groove extends from an outer end of the barrier wall towards the body of the backboard, and the depth of the stepped groove is consistent with the thickness of the display panel. The backboard is made of plastic plate containing a enhancing element. The flat panel display device according to the present disclosure can be designed as a light and thin display device with no frame, and thus is suitable for making an all-in-one machine.

An illumination device, including: a light source; a light guide plate having a light-entering face into which light from the light source enters and a light-exiting surface; a reflective sheet covering at least a portion on a light-entering face side of a bottom surface of the light guide plate; a chassis on a side of the reflective sheet opposite to the light guide plate, including at least a plate-shaped portion along the bottom surface of the light guide plate and a cut-out in the plate-shaped portion on the light-entering face side; and an opposite-side member on a side of the chassis opposite to the light guide plate, including a protrusion protruding from a light guide plate-side of a top surface of the opposite-side member through the cut-out towards the light guide plate, a top of the protrusion supporting a portion of the reflective sheet on the light-entering face side.

A light guide body includes: a light incident portion on which light is incident; a light guiding portion which is adapted to guide the light incident on the light incident portion; and a light emitting portion which is adapted to emit the light guided by the light guiding portion. One of the light incident portion and the light guiding portion is extended in a first direction, and the light emitting portion is extended in a second direction which is perpendicular to the first direction.

A light guide body includes: a light incident portion on which light is incident; a light guiding portion which is adapted to guide the light incident on the light incident portion; and a light emitting portion which is adapted to emit the light guided by the light guiding portion. One of the light incident portion and the light guiding portion is extended in a first direction, and the light emitting portion is extended in a second direction which is perpendicular to the first direction.

Left and right sides in the television are provided symmetrically with independent sound boxes. Each sound box comprises a box body and a loudspeaker group, a front passive radiator and a rear passive radiator that are located in the box body. The front passive radiator is installed on the front box wall of the box body. The loudspeaker group installed on the front box wall is disposed on one side or left and right sides of the front passive radiator. The rear passive radiator is installed on the rear box wall, opposite to the front box wall, of the box body, and the rear passive radiator corresponds to the front passive radiator. The bass vibrating membrane area is exponentially increased through dual membrane symmetric resonance; and through the resonance, the bass effects are dramatically enhanced, the perfect reproduction of the whole tone frequency domain is achieved.

Provided is a display device including an image display unit configured to display an image with a plurality of pixels arranged on a display surface, an eyepiece optical unit configured to project the display surface of the image display unit in a manner that a predetermined angle of view is obtained, and an image correction unit configured to correct a display image on the display surface at a position of each of representative pixels which are discretely located on the display surface, on the basis of distortion generated due to the eyepiece optical unit.

Provided is a display device including an image display unit configured to display an image with a plurality of pixels arranged on a display surface, an eyepiece optical unit configured to project the display surface of the image display unit in a manner that a predetermined angle of view is obtained, and an image correction unit configured to correct a display image on the display surface at a position of each of representative pixels which are discretely located on the display surface, on the basis of distortion generated due to the eyepiece optical unit.