Abstract: A small-angled, predetermined-positioned and predetermined-orientated light emitting device of a backlight module of a liquid crystal display comprises: a plurality of lower prisms; and each lower prism having an emitting face; a light guiding plate (LGP) being integrated with the plurality of lower prisms as an integral unit; a plurality of upper prisms; each upper prism having an entering face and an total reflecting face, an upper prism plate being integrated with a plurality of upper prisms as an integral unit. Emitting light beams nonuniformly distributes from predetermined positions, and each emitted light beam is limited to a small angle range.

Abstract: The present invention provides a resembling prismatic structure of light guide plate to economize the optical films such as prismatic film, diffusion film, reflection film and . . . etc. The present invention simplifies the multifarious structures of the prior LCD backlight modules. It can efficiently decrease the material of making the backlight module and the cost of the manufacturing time. In comparison with that conventional LCD backlight module emits light wholly, continuously and evenly from light emitting face of light guiding plate. Large amount of energy is wasted in the conventional backlight module owing to its illumination on the opaque part of LCD substrate such as common electrode and black matrix.

Abstract: The present invention provides a resembling prismatic structure of light guide plate to economize the optical films such as prismatic film, diffusion film, reflection film and . . . etc. The present invention simplifies the multifarious structures of the prior LCD backlight modules. It can efficiently decrease the material of making the backlight module and the cost of the manufacturing time. In comparison with that conventional LCD backlight module emits light wholly, continuously and evenly from light emitting face of light guiding plate. Large amount of energy is wasted in the conventional backlight module owing to its illumination on the opaque part of LCD substrate such as common electrode and black matrix.

Abstract: The present invention of illuminator pertains to converting spot light source, especially light-emitting-diode, into planar light source with some kind of intensity distribution mode, including a spot light source and a reflector, characterized in that spot light source is located at lateral and nook position, and the reflector can be designed elastically according to requirement of mode of reflected light vector distribution in space and mode of reflected light intensity distribution on illuminated surface. Spot light sources of the present invention include light-emitting-diode LCD. The modes of reflected light include space distribution mode in which light vectors are more orientated or nearly parallel and intensity distribution mode, of reflected light on illuminated surface, in which intensity is nearly even on illuminated surface; Both types of modes can co-exist in a illuminator.

Abstract: The present invention of “small-angled, specifically-positioned and specifically-orientated light emitting device of backlight module of liquid crystal display” is related to LCD backlight module which emitting light beams from specified positions, with each emitted light beam limited to small angle range, and with orientations of that angle range of each emitted beam including orientation pointing to specified opening of LCD substrate or with such and vertical to emitting face of light guiding plate, and with distance of central line of neighboring emitted light beams nearing distance of neighboring LCD substrate openings, and with no light being emitted between two neighboring emitted light beams, in comparison with that conventional LCD backlight module emits light wholly, continuously and evenly from light emitting face of light guiding plate.