Abstract: A method of producing a light guide plate, comprising the steps of: (a) providing a base board and a dispenser having a cylinder and a nozzle connecting the cylinder, wherein the cylinder is filled with a binding substance; (b) positioning the nozzle above an area of the base board according to a predetermined pattern and unloading a suitable quantity of the binding substance on the area of the base board; (c) solidifying the binding substance adhered to the base board; (d) repeating steps (b) and (c) appropriately in turn to form a predetermined number of pattern dots on the base board, whereby the light guide plate is formed. A method of making a core insert for a light guide plate is also provided. The present methods have a high precision pattern dots design, and can also put into practice easily.

Abstract: The backlight module includes a casing (21), a light guide plate (26) in the casing (21), a plurality of lamps (23A, 23B, 23C and 23D) arranged to illuminate the light guide plate, a plurality of image sensors (20A, 20B, 20C and 20D) configured for detecting illumination of corresponding lamps, a digital processor (30) configured for processing signals generated by the image sensors, and a plurality of lamp driving loops (32A, 32B, 32C and 32D) configured for receiving feedback signals generated by the digital processor and adjusting a lamp current voltage outputted by a lamp driving loop for each lamp, so as to get an uniform illumination of each lamp.

Abstract: A light emitting diode (10, 20, 30, 40) includes an illuminant element (12) and a package (14, 24, 34, 44). The illuminant element defines an optical axis (OO?, O1O1?, O2O2?, O3O3?). The package has a transparent surface (141, 241, 341, 441) oblique to the optical axis. The illuminant element is disposed inside the package. Light illuminated by the illuminant element emits from the light emitting diode via the transparent surface.

Abstract: A backlight module (20) includes a light guide plate (21) and two light emitters (22). The light guide plate includes an emitting surface (212), a bottom surface (213) opposite to the emitting surface, a plurality of side surfaces interconnecting the emitting surface and bottom surface, and an incident surface (211) disposed at a corner portion thereof adjoining to two adjacent side surfaces. The light guide plate defines a through hole (23) in the corner portion adjacent to the incident surface. The two light emitters are adjacent to and face the incident surface.

Abstract: A backlight module (20) includes a light source (21), a prism sheet (23) and a light guide plate (22). The light guide plate includes an incident surface (221), an emitting surface (223), a bottom surface (222) and a plurality of depressions (224). The emitting surface is located adjoining the incident surface. The depressions are formed on the emitting surface. Each depression has a refractive surface (225) and a reflective surface (226) adjoining the refractive surface. The reflective surface faces the incident surface, and the refractive surface faces away from the incident surface. The light source is arranged besides the light guide plate and facing the incident surface. The prism sheet has a prism surface facing the emitting surface of the light guide plate and forms a plurality of prisms (241) on the prism surface.

Abstract: A backlight module 200 is provided, which includes a light guide plate 22 and a nonspecular reflective device 28, 34. The light guide plate 22 has a light-incident surface 221, a light-emitting surface 223, and a bottom surface 222 opposite to the light-emitting surface 223. The nonspecular reflective device 28, 34 arranged on and within an elongate section of the bottom surface 222. The elongate section of the bottom surface 222 is proximate to or adjacent the light-incident surface 221 of the light guide plate 22. The backlight module 200 can also include a light source 21 and a reflective plate 23. The light source 21 is disposed facing the light-incident surface 221, and the reflective plate 23 is disposed below the bottom surface 222.

Abstract: A backlight module (1) includes a light source (92), a light guide plate (80), and a frame (60). The frame contains the light source and the light guide plate. The frame includes a base plate (65) defining a transflective region (651) and a plurality of holes (652) defined in the transflective region. A portion of light beams from the light source is reflected by the transflective region out one main face of the backlight module, and a remainder of the light beams passes through the transflective region to emit from another main face of the backlight module. The backlight module and frame provide a double-sided emitting structure for a double-sided LCD. This avoids the need for an expensive transflector.