Abstract: A projection lens unit and a thin projector using the same are disclosed. The projection lens unit includes a plurality of lens sets for emitting light carrying an image, and a reflector arranged between adjacent ones of the lens sets or at a downstream end of the lens sets, and adapted to change a direction of light incident on the reflector.

Abstract: A thin projector is disclosed. The thin projector includes a housing having an upright panel shape, an illumination unit arranged in the interior of the housing, the illumination unit generating light and emitting the generated light, a micro device arranged in the interior of the housing, the micro device receiving the light from the illumination unit and producing an image using the received light, and a projection lens unit arranged in the interior of the housing, the projection lens unit including an emission unit adapted to externally emit the image produced by the micro device and arranged to be externally exposed through a front side of the housing.

Abstract: A device and method for processing a PIP (picture in picture) in a TV, in which a PIP is overlaid on a main picture, thus allowing a user to watch the PIP as well as the main picture even in a region of the PIP at the same time.

Abstract: Device and method for processing a picture in picture) in a TV, in which a PIP is overlaid on a main picture, to permit watching the PIP as well as the main picture even in a region of the PIP on the same time, the device including a first video processing part for receiving, and processing a main picture video signal into a signal displayable on a screen a second video processing part for receiving, and processing a sub picture video signal into a signal displayable on a region of the screen, a control part for providing a control signal according to a users command, and an adjusting part for adjusting a presenting ratio of a video sign from the second video processing part in response to the control signal from the control part, thereby permitting to watch the main picture even in the sub picture because a mix ratio adjustment of the main picture and the sub picture are possible, and to watch a good quality main, and sub pictures because the mix ratio of the main picture and the sub picture can be adjusted,