Abstract: Disclosed is a backlight assembly (500) for an LCD apparatus. The backlight assembly (500) includes a light guide plate (300) for emitting a light in two directions (325, 335) and a brightness control member (400) for controlling brightness ratio of the light emitted in the two directions. Accordingly, the LCD apparatus may display images in the two directions, which are same to each other or different to each other using the brightness control member (400).

Abstract: In a light guide plate and a backlight assembly having the same, the light guide plate includes side surfaces having at least one incident surface into which light is incident, an exit surface on which a first prism pattern for condensing the light and a concavo-convex pattern for diffusing the light are formed, and a reflect surface facing the exit surface and including a second prism pattern formed thereon. Accordingly, the backlight assembly may remove the diffusion and prism sheets therefrom and improve the light efficiency and brightness uniformity.

Abstract: A backlight assembly includes a light guide plate including a light incident face, a light exiting face extended from one end portion of the light incident face, and a reflection face extended from another end portion of the light incident face. The reflection face includes a first reflection face extended from another end portion of the light incident face, and a second reflection face horizontally extended from the first reflection face. The backlight assembly additionally includes a light adsorption member disposed adjacent to the reflection face to prevent the light from reflecting. A reflection plate and optical sheets are disposed adjacent to the light guide plate, so that entire thickness of the backlight assembly is reduced. In addition, leakage of the light incident around the third light exiting face is prevented to improve the quality of the image displayed through the LCD device.

Abstract: A method for illuminating a liquid crystal display device, a back-light assembly for performing the same and a liquid crystal display device using the same can improve the front luminance and production yield. Lights from a lamp is incident to a LCD panel side, which are then primarily diffused for a uniformity of the luminous flux of the incident lights. The luminous flux of the primarily diffused lights is condensed with respect to a first orientation component on a plane in parallel with the LCD panel, and then partially and secondarily diffused for extending a view angle of pixels of the LCD panel. After the luminous flux of the secondarily diffused lights is condensed with respect to a second orientation component perpendicular to the first orientation on the parallel plane, the condensed lights are illuminated onto the LCD panel.

Abstract: Disclosed are a method and a device for guiding light, and a back light assembly and a liquid crystal display device having the device for guiding light for reducing a bright line appearing in a liquid crystal display panel. When the ridge of the prism light guide plate, which is disposed adjacent to the light incident face is formed round; when a shape of the lamp cover is transformed to cover an upper edge portion of the light guide plate; when the light-shielding member is attached on a region of the light luminance control member, that is disposed adjacent to the light incident face of the light guide plate; and when the light incident face of the light guide plate is disposed as far from a border of an active display region as possible, the bright line is reduced.

Abstract: In a backlight assembly and a liquid crystal display apparatus having the same, the backlight assembly includes a light emitting diode that emits light and a light guide plate that supplies the light to a liquid crystal display panel. The light guide plate includes a guide recess formed at a first end thereof so as to guide the light emitted from the light emitting diode to a second end opposite the first end of the light guide plate. Thus, the light guide plate may prevent leakage of the light therefrom, thereby improving display quality of the liquid crystal display apparatus.

Abstract: A diffusively reflective film includes a base film, a light reflection layer and a light diffusion layer. The base film is flexible. The light reflection layer is disposed on the base film. The light reflection film reflects a first light. The light diffusion layer is disposed on the light reflection layer. The light diffusion layer diffuses the first light to form a second light. The diffusively reflective film may be bent to cover the light guide plate without being broken so as to increase the amount of light. Thus, a display quality is enhanced. Further, the diffusively reflective film covers the first side face, the second side face and the first face of light guide plate at once. Thus, productivity is enhanced and its manufacturing cost is reduced.

Abstract: In a lamp and method for fabricating the same, an outer surface of the lamp tube is dipped into a conductive transparent solution for forming an electrode by a predetermined depth, and then the lamp tube is pulled out from the solution. Accordingly, an electrode having different profiles is formed on the outer surface of the tube body. Also, the outer surface of the lamp tube is dipped into the solution by an acute angle, and is pulled out from the solution. Therefore, a problem of a nonuniform brightness between lamps is not generated, and light utilization efficiency is much enhanced even when using a plurality of lamp in parallel connected to a power supply.

Abstract: In a two-way backlight assembly and a two-way LCD apparatus, the two-way backlight assembly provides light emitted from one light source to a first direction where a main LCD panel is placed and to a second direction where a sub LCD panel is placed. Also, a sub mold part for receiving the sub LCD panel comprises a black-colored material so as to prevent reflection of the light. Accordingly, thickness and power consumption of the backlight assembly may be reduced and display quality may be also improved by preventing leakage of the light at ends of the sub LCD panel.

Abstract: A lamp assembly, a backlight assembly and a LCD apparatus having the same are provided. The lamp assembly includes a lamp for emitting a light and a lamp holder for receiving one end of the lamp and for emitting a portion of the light emitted from the end of the lamp. The lamp holder has a transparent or semi-transparent material. The backlight assembly includes a light guiding plate for guiding the light emitted from the lamp and the lamp holder and for emitting the guided light and a receiving container for receiving the lamp assembly and the light guiding plate. Accordingly, the dark portion corresponding to the electrodes of the lamp may be reduced and brightness of the backlight assembly may be enhanced.

Abstract: A backlight assembly for an LCD apparatus comprises a lamp emitting light; a light guide plate including a light-entering surface through which the light from the lamp enters, and a light-emitting surface through which the light is emitted; a lamp reflector having an opening toward the light-entering surface and combined to the light guide plate, accommodating and covering the lamp; and a light interceptive part interposed between the light-emitting surface and the lamp reflector, and preventing the light from the lamp from entering through an edge at which the light-entering surface and the light-emitting surface are intersected. With this configuration, the present invention provides a backlight assembly for an LCD apparatus, which is improved in preventing a bright-line occurring on a front area adjacent to a light-entering surface of a light guide plate and in enhancing the brightness.

Abstract: Disclosed is a liquid crystal display apparatus (600) having enhanced axial brightness as well as embodying a thin and lightweight LCD. A first light (L1) generated from a light source (120) is incident to a light guiding plate (200). A path of the first light is changed by the light guiding plate (200), and a third light (L3) exits toward a reflecting plate (300). Then, the third light (L3) is reflected on the reflecting plate (300) to be changed into a second light (L2) with enhanced axial brightness. The third light (L3) is converged to be the second light (L2) with enhanced axial brightness by the reflecting late (300) with a surface structure having a triangular prism shape. Thus, the liquid crystal display apparatus is capable of enhancing the axial brightness as well as minimizing the overall dimension and weight.

Abstract: A method for illuminating a liquid crystal display device, a back-light assembly for performing the same and a liquid crystal display device using the same can improve the front luminance and production yield. Lights from a lamp is incident to a LCD panel side, which are then primarily diffused for a uniformity of the luminous flux of the incident lights. The luminous flux of the primarily diffused lights is condensed with respect to a first orientation component on a plane in parallel with the LCD panel, and then partially and secondarily diffused for extending a view angle of pixels of the LCD panel. After the luminous flux of the secondarily diffused lights is condensed with respect to a second orientation component perpendicular to the first orientation on the parallel plane, the condensed lights are illuminated onto the LCD panel.

Abstract: A light guide plate includes a light incident surface for receiving light, first and second light emission surfaces for emitting light at a first light emission angle with respect to the first and second light emission surfaces, and a light reflection pattern formed on the first light emission surface, for reflecting the light toward the second light emission surface. The reflected light from the light reflection pattern exits the second light emission surface at a second light emission angle with respect to the second light emission surface, and the second light emission angle is larger than the first light emission angle. The light reflection pattern includes multiple dots each having a prim pattern on their surface and light reflecting surfaces elongated in a selected direction. The adjacent light reflecting surfaces meet each other at their elongated edges to form a prism shape.

Abstract: A light guide plate includes a first surface having a light incident surface and a light reflect surface, a second surface facing the first surface, through which the reflected light exits, a first edge surface connected between edges of the light reflect surface and the second surface, and a second edge surface connected between edges of the light incident surface and the second surface, being opposite to the first edge surface. A light source is disposed on the light incident surface. A light guide plate may also include a stepped edge portion formed at a marginal area of the light guide plate on which a light source is combined. The stepped edge portion includes a light incident surface, a light reflect surface, an upper surface through which the reflected light exits the light guide plate, and a first edge surface connected between edges of the light reflect surface and the upper surface, being opposite to the stepped edge portion.

Abstract: In an LCD apparatus having an optical member, the optical member has a base body having a light incident surface and a light emitting surface faced the light incident surface. A first resin layer is formed on the light emitting surface and a light diffusing pattern is uniformly formed on the first resin layer so as to diffuse a first light and emit a second light. Accordingly, the LCD apparatus can improve display quality and can be fabricated in low-cost manufacture. Also, since the light diffusing pattern is formed with a curable material, the light diffusing pattern can have various shapes and superior reproducibility.

Abstract: A backlight assembly includes a first light guide having a first light incident face, a first light reflective face connected to the first light incident face and having a stepped portion, and a first light exiting face facing the first light reflective face. The backlight assembly further includes a second light guide having a second light incident face corresponding to the first light incident face, a second light reflective face connected to the second light incident face and facing the first light reflective face, and second light exiting face facing the second light reflective face. A light reflective plate is inserted into a gap between the first and second light guides. The first and second display panels, respectively, are installed on the first light guide and the second light guide. The generated light is used more efficiently and the overall thickness of an LCD device is decreased.

Abstract: A light guiding plate capable of minimizing a thickness of a backlight assembly and an LCD device, a backlight assembly and an LCD device having the same are provided. The light guiding plate has a light incident surface, a light reflection surface having a plurality of dots for diffusing and reflecting the light emitted from the light incident surface and a light output surface having a predetermined roughness and further diffusing the light diffused and reflected by the light reflection surface. Thus, a conventional diffusion sheet disposed above the light guiding plate may be removed.

Abstract: A backlight assembly and a direct illumination type LCD apparatus having the same are provided. The backlight assembly has a light diffusion member including a diffusion layer for diffusing a first light emitted from at least one lamp and a light path modulation layer protruded from the diffusion layer to modulate the path of the first light, so the light diffusion member emits a second light having a uniform brightness distribution in response to the first light. The light path modulation layer may be disposed on one surface of the diffusion layer where the first light is inputted or another surface of the diffusion layer where the second light is emitted.

Abstract: A lamp assembly, a backlight assembly and a LCD apparatus having the same are provided. The lamp assembly includes a lamp for emitting a light and a lamp holder for receiving one end of the lamp and for emitting a portion of the light emitted from the end of the lamp. The lamp holder has a transparent or semi-transparent material. The backlight assembly includes a light guiding plate for guiding the light emitted from the lamp and the lamp holder and for emitting the guided light and a receiving container for receiving the lamp assembly and the light guiding plate. Accordingly, the dark portion corresponding to the electrodes of the lamp may be reduced and brightness of the backlight assembly may be enhanced.