Abstract: A side-emitting backlight module includes a light guide plate and a plurality of point light sources. The light guide plate has a light incident end face. The point light sources are arranged as a first row and a second row. Each of the point light sources has a light emitting face. The first row is disposed between the second row and the light guide plate. Each point light source of the first row is staggered with respect to each point light source of the second row, so that each light emitting face of the point light sources fronts the light incident end face of the light guide plate.

Abstract: A light guide plate and a side-emitting backlight module having the same are disclosed. The light guide plate includes a transparent substrate, a plurality of prisms and a plurality of condensing lenses. The prisms are arranged side by side on one surface of the transparent substrate. The condensing lenses are disposed between two adjacent prisms, and distributed from sparsely to densely along a direction of a crest line of each of the prisms.

Abstract: A light guide plate includes a plurality of light guide units each including a light exit surface, a bottom surface, a first side surface and a second side surface. The first and the second side surfaces respectively include a first oblique surface and a second oblique surface. The first and the second oblique surfaces are opposite to each other and both adjoining the bottom surface. The first side surface of one of the each two adjacent light guide units is joined with the second side surface of the other one and thereby the light exit surfaces of the light guide units cooperatively form a substantially flat surface. The light guide units define a plurality of receiving cavities spaced apart from one another by the first and the second oblique surfaces thereof. In addition, a direct-type surface light source device using the light guide plate also is provided.

Abstract: A backlight module including a light guide plate, a light source and a transparent elastomer is provided. The light guide plate has a first light emitting surface, a bottom surface opposite to the first light emitting surface and at least a light incident surface contacting the first light emitting surface and the bottom surface. The light source is disposed adjacent to the light incident surface and includes a circuit board and a plurality of light emitting diode devices. Each of the light emitting diode devices is capable of emitting light passing through the light incident surface. The light emitting diode devices are electrically connected to the circuit board. The transparent elastomer is disposed between the light incident surface and each of the light emitting diode devices.

Abstract: A backlight module applied to a display and including a linear light source and a light guide plate (LGP) is provided. The LGP includes a light emitting surface, a bottom surface, a light incident surface, a first side surface, a second side surface and a microstructure. The bottom surface is opposite to the light emitting surface. The light incident surface is in contact with the light emitting surface and the bottom surface. The linear light source is disposed adjacent to the light incident surface. The first side surface is opposite to the light incident surface and in contact with the light emitting surface and the bottom surface. The second side surface is in contact with the light emitting surface, the bottom surface, the light incident surface and the first side surface. The microstructure is formed on the second side surface and adjacent to the light incident surface.

Abstract: A backlight module includes a light guide plate and a light source. The light guide plate includes a first end portion, a second end portion, a middle portion between the first and second end portions, a top face extending from the first end portion to the second end portion, a bottom face extending from the first end portion to the second end portion, a light entrance face interconnecting the top and bottom faces at the first end portion, and a plurality of prismatic strips formed on the bottom face. The prismatic strips have a lower density at the first end portion as compared to the middle portion. The density is defined as a total length of the prismatic strips per unit area of the bottom face. The light source is disposed adjacent to the light entrance face.

Abstract: A backlight module includes a light guide plate which has a first sidewall and two opposite second sidewalls extending transversely of the first sidewalls. The first and second sidewalls interconnect two opposite first and second faces. Alight source is disposed at one of the second sidewalls and projects light rays onto the first sidewall at an oblique angle. A first reflection layer is disposed over the first sidewall, and a second reflection layer is disposed over the second face. Total reflection of light into the light guide plate from the first sidewall and second face increases brightness and enhances evenness of brightness.

Abstract: A backlight module comprising a light guide plate, a lamp reflector and a lamp for providing a light is provided. The light guide plate includes a side end, an upper surface, and a lower surface. The light provided by the lamp enters the light guide plate through the side end and is provided outward through the upper surface. The lamp reflector is disposed at the side end to enclose the lamp. The lamp reflector comprises an upper flake and a lower flake to clamp the light guide plate. An angle exists between a extended direction of the upper flake and a extended direction of the lower flake.

Abstract: A backlight module includes a light guide plate and a light source. The light guide plate includes a first end portion, a second end portion, a middle portion between the first and second end portions, a top face extending from the first end portion to the second end portion, a bottom face extending from the first end portion to the second end portion, a light entrance face interconnecting the top and bottom faces at the first end portion, and a plurality of prismatic strips formed on the bottom face. The prismatic strips have a lower density at the first end portion as compared to the middle portion. The density is defined as a total length of the prismatic strips per unit area of the bottom face. The light source is disposed adjacent to the light entrance face.

Abstract: A backlight module includes a light guide plate which has a first sidewall and two opposite second sidewalls extending transversely of the first sidewalls. The first and second sidewalls interconnect two opposite first and second faces. Alight source is disposed at one of the second sidewalls and projects light rays onto the first sidewall at an oblique angle. A first reflection layer is disposed over the first sidewall, and a second reflection layer is disposed over the second face. Total reflection of light into the light guide plate from the first sidewall and second face increases brightness and enhances evenness of brightness.

Abstract: A polyimide resin having good thermal stability and good adhesion to a metal foil is disclosed. The polyimide resin is prepared by dissolving at least one diamine in a polar aprotic solvent followed by the addition of an aromatic tetracarboxylic acid dianhydride to the solution of the aromatic diamines to prepare a polyamic acid solution, imidizing this solution to a polyimide resin by heating at a temperature above 250.degree. C., the polar aprotic solvent comprising at least 1 weight % of acetone. Polyimide laminates with a metal foil, such as a copper foil, are also described. The laminates may be used to form flexible printed circuit boards.