Sharp Kabushiki Kaisha Corporation

Hideyuki Chikazawa

Mitsuhiro Moriyasu

Masaki Shimizu

A display apparatus, comprising: a display panel including a display region displaying an image in front side at a center part of the display panel, and including a non-display region around the display region; a light guide plate arranged in rear side of the display panel, and being opposed to the display panel; an optical sheet arranged between the light guide plate and the display panel; and a support part arranged between the optical sheet and the light guide plate, and supporting an edge part of the optical sheet, wherein the optical sheet is opposed to the display region and the non-display region, and at least a part of the support part is located in the display region over a boundary between the non-display region and the display region.

Display apparatus and television receiver

A television receiver includes a reception section receiving television broadcast, and a display apparatus on which an image is displayed based on the television broadcast received by the reception section. The backlight chassis included in the display apparatus supports a light source unit emitting light for displaying an image and constitutes a part of an outer casing of the display apparatus. The backlight chassis has an integrally continuous circumferential wall formed of side walls vertically extending from the respective sides of the bottom wall of a rectangular shape. The circumferential wall surrounds the light source unit.

When the temperature value detected by a temperature detecting circuit is lower than a previously designated set temperature value, cathode fluorescent lamps (CFLs) are operated to illuminate with a duty ratio of 100% so as to enhance the brightness. When the detected temperature value has become equal to or higher than the previously designated set temperature value, CFLs are operated to illuminate by changing the duty ratio into a user set value.

Liquid crystal display device

In order to control light emission of light emitting diodes, current dividing circuits are used to supply currents of a substantially fixed level to all lines. Light emitting diodes are arranged in groups of a predetermined number of LEDs in series, and sets of the light emitting diodes connected to the first line and sets of the light emitting diodes connected to the second line are laid out on the same straight line so as to form a single row. Substrates with these formed thereon are arranged adjacent to each other in the direction of the rows, so that sets of the light emitting diodes connected to the first line and sets of the light emitting diodes connected to the second line are arranged alternately. With this configuration, it is possible to provide a backlight device with a plurality of LED arrays arranged thereon, which can uniformly illuminate the entire screen with light from the LED arrays.

Backlight device and liquid crystal display device

To provide a backlight unit capable of improving color purity of a prescribed emission color as well as obtaining a uniform emission colors in the entire device, and a liquid crystal display device comprising thereof. Backlight unit B comprises: a LEDfor compensating emission intensity of red wavelength light of a fluorescent tube, being arranged in between each of a plurality of said fluorescent tubesarrayed in up and down directions, and a LEDfor compensating emission intensity of red wavelength light of a fluorescent tube, being arranged in the outside of each of two fluorescent tubesarranged in the outermost of a plurality of said fluorescent tubes

Growing community of inventors

Tsu, Japan

Hideyuki Chikazawa