Abstract: A backlight unit and method of use are provided having a first light guide plate, a linear light source disposed along at least one side edge of the first light guide plate, a plurality of second light guide plates facing the first light guide plate, and a point light source disposed along at least one side edge of each second light guide plate. Accordingly, the present invention can provide a backlight unit using both a point light source and a linear light source at substantially the same time, and having superior color reproducibility and low power consumption.

Abstract: A liquid crystal display and control method thereof, having a liquid crystal display panel, a light emitting diode device which is disposed on the rear of the liquid crystal display panel and which is divided into a plurality of partitioned areas that are capable of being driven independently, a light guide part disposed for each of the partitioned areas, an image calculating part for dividing the liquid crystal display panel into a plurality of regions and calculating the brightness of each region by using image data, and an inverter and an inverter controller to provide differentiated power to the partitioned areas based on the calculated brightness.

Abstract: The present invention relates to an LCD and a method for improving display thereof where a plurality of LED devices are mounted on a rear of LCD panel, and a partition which allows the plurality of the LED devices to be disposed in a plurality of partitioned areas is provided. The thickness of the partition narrows toward the LCD panel. A power supplier supplies power to the plurality of LED devices, and a controller controls the power supplier to supply the power to the LED device in each divided area sequentially and repeatedly. An LCD with improved contrast ratio while LED devices are separately driven in a plurality of partitioned areas is achieved.

Abstract: The present invention provides a backlight unit comprising a light source unit divided into a plurality of divisions which are driven independently each other, a light source driving group supplying electric power to the light source unit and comprising a multi-driving part which is connected to the divisions of at least two, and a light source controller controlling the light source driving group so as to selectively supply electric power to the divisions connected to the multi-driving part. The present invention also provides a method of controlling the backlight unit. Thus, the present invention provides a backlight unit and method for controlling a backlight unit comprising a light source unit which is divided into simple configurations and is efficiently driven.

Abstract: A volumetric three-dimensional display panel and a volumetric three-dimensional display system employing the volumetric three-dimensional display panel are provided, wherein the volumetric three-dimensional display panel is formed by stacking a plurality of transparent flat display panels, such as, organic light-emitting devices. In the volumetric three-dimensional display panel, two-dimensional images are displayed on the transparent three-dimensional display panels, respectively, to form a single three-dimensional image.

Abstract: A backlight unit and an LCD employing the backlight unit are provided. The backlight unit includes: a plurality of division areas; a light source which is able to be lighted and is disposed on one sidewall surface of a barrier rib defining the plurality of division areas; and a heat radiation device disposed on an opposite wall surface of the barrier rib to the one sidewall surface, wherein each of the plurality of division areas is constructed to bi-divide light reflection and heat radiation.

Abstract: A backlight unit and an LCD employing the backlight unit are provided. The backlight unit includes: a base substrate; a plurality of point light sources arranged in two or more lines on the base substrate; a diffusion plate disposed over the plurality of point light sources to diffuse and transmit incident light; and at least one barrier rib forming two or more division areas by being disposed between the base substrate and the diffusion plate to be upright with respect to the base substrate between the lines and having a wall surface reflecting light incident from the plurality of point light sources, at least a portion of an end portion of the barrier rib being inserted into the diffusion plate.

Abstract: A light emitting assembly, a backlight unit, and a display are provided. The light emitting assembly includes: light emitting modules, wherein the light emitting modules include: a substrate having an electrical connecting portion; and a plurality of light emitting units arranged on the substrate, and wherein the light emitting modules can be assembled using the electrical connecting portion. The light emitting assembly can be assembled using the light emitting modules comprised of independent blocks and thus, can be freely used regardless of the size of the display.

Abstract: A light emitting cluster, a backlight unit having the same, and a liquid crystal display device having the backlight unit are provided. The light emitting cluster includes five light emitting devices including two first light emitting devices producing first color light, two second light emitting devices producing second color light, and a third light emitting device producing third color light, wherein one of the first light emitting devices, one of the second light emitting devices, the third light emitting device, one of the first light emitting devices, and one of the second light emitting devices are arranged sequentially.

Abstract: An illuminating unit includes a reflector including a parabolic reflecting surface and an incident portion and an exit portion intersecting with each other a light source to emit a beam onto the reflecting surface through the incident portion, a light source deviation compensator disposed between the reflector and the light source to focus an image of the light source is focused to a focal point of the reflecting surface, and a light path changer to direct at least a portion of a beam with a radiation angle less than an angle of the exit portion toward the reflecting surface.

Abstract: An illumination unit includes a first heat conducting plate and a plurality of light source modules to emit a plurality of lights having different colors, each light source module having at least one LED mounted on the first heat conducting plate and at least one corresponding collimator to collimate the lights emitted from the at least one LED.

Abstract: A projection-type image display apparatus using a light emitting diode light source including a compact optical arrangement. The projection-type image display apparatus includes an illumination optical system including a light emitting diode light source to produce light and emit the light produced in one direction, a uniform light illumination unit disposed along a first optical path to change a propagation direction of the light emitted from the illumination optical system and to emit uniform light, a display device to form an image from the light emitted from the uniform light illumination unit, and a projection optical system disposed along a second optical path to enlarge and project the image formed by the display device onto a screen, wherein the first optical path along which the uniform light illumination unit is disposed and the second optical path along which the projection optical system is disposed are parallel or substantially parallel to each other.

Abstract: Provided are a bonding structure for a flat panel display and a method of forming the same, and a flat panel display, including the bonding structure. The bonding structure of a flat panel display device, which is formed between an upper substrate and a lower substrate to seal and bond the two substrates of the flat panel display device, and the bonding structure includes an outer separation wall and an inner separation wall of same heights being arranged along edges of the upper substrate and the lower substrate with a predetermined interval, and a sealant being applied between the outer separation wall and tn wall.

Abstract: A liquid crystal on silicon (LCOS) device includes a wafer, glass, and walls formed at opposite ends of an upper surface of the wafer to define a predetermined cell gap between the glass and the wafer. A thin piezo-electric layer is attached onto a surface of the wafer and an electrode is applied with external power to expand and/or contract the thin piezo-electric layer. The LCOS device further includes a voltage detection unit for detecting a voltage generated by the deformation of the thin piezo-electric layer; and a feedback control unit for compensating for deformation of the thin piezo-electric layer according to the voltage detected by the voltage detection unit. The LCOS device achieves uniformity of the cell gap by adjusting the voltage level of the thin piezo-electric layer after bonding the wafer and the glass, and therefore, spacers are not required.