Abstract: An exemplary optical plate includes at least one transparent plate unit. The transparent plate unit includes a light output surface, a bottom surface, a plurality of depressions and at least one lamp-receiving portion. The light output surface is opposite to the bottom surface. The depressions are formed at the bottom surface. The lamp-receiving portion is defined in the bottom surface. A backlight module using the present optical plate is also provided.

Abstract: An exemplary optical plate (20) includes a light output surface, and a bottom surface opposite to the light output surface. A plurality of first protrusions are formed on the light output surface. A lamp-receiving portion is defined in the bottom surface. A backlight module (200) using the optical plate is also provided.

Abstract: An exemplary LED lamp assembly includes a housing (21), a printed circuit board (22), one or more LEDs (23), a light reflective module (24) and a lamp cover (25). The housing includes a top cover (211), a base sheet (213), a plurality of sidewalls (215), and an opening (218). LEDs are electrically connected to the printed circuit board on the base sheet includes a light-emitting side surface (233) and a top surface (235), a portion of the light-emitting side surface facing the opening, and the top surface facing the top cover. The reflective module defines a through hole (247) for allowing the LED passing therethrough. The first-light-distributing member (26) is located in the housing between the LED and the opening. The lamp cover covers the opening.

Abstract: An exemplary optical plate (20) includes a light output surface, and a bottom surface opposite to the light output surface, a plurality of first protrusions formed on the bottom surface, and a lamp-receiving portion defined on the bottom surface. A backlight module (200) using the optical plate is also provided.

Abstract: An exemplary LED lamp includes a housing, a printed circuit board, at least one LED, a light reflective module and a lamp cover. The printed circuit board is positioned on a bottom of the housing. The LED electrically connects with the printed circuit board. The light reflective module includes at least one light-shielding sheet and a bottom reflective plate disposed between the printed circuit board and the light-shielding sheet. The bottom reflective plate defines at least one through hole. The LED passes through the at least one through hole correspondingly. Each light-shielding sheet defines a plurality of light holes and covers the LED correspondingly. The lamp cover is fixed on the opening of the housing. The LED lamp has a uniformity brightness.

Abstract: An exemplary LED lamp includes a housing having an opening, a printed circuit board, at least one LED, a light reflective plate, a light reflective module and a lamp cover. The printed circuit board is positioned on a bottom of the housing. The LED is electrically connected with the printed circuit board. The light reflective plate defines at least one through hole, the LED passing through the corresponding through hole. The light reflective module includes a bottom reflective plate, at least two opposite reflective sidewalls, at least one light-shielding sheet extending at midsections from the opposing reflective sidewalls. The bottom reflective plate defines at least one first cutout, the at least one LED passing through the corresponding first cutout. The at least one light-shielding sheet defines a plurality of light holes and covers the corresponding LED. The LED lamp assembly has a uniform luminance.

Abstract: An exemplary LED lamp includes a housing, a printed circuit board, at least one LED, a light reflective module and a lamp cover. The printed circuit board is positioned on a bottom of the housing. The LED electrically connects with the printed circuit board. The light reflective module includes at least one light-shielding sheet and a bottom reflective plate disposed between the printed circuit board and the light-shielding sheet. The bottom reflective plate defines at least one through hole. The LED passes through the at least one through hole correspondingly. Each light-shielding sheet defines a plurality of light holes and covers the LED correspondingly. The lamp cover is fixed on the opening of the housing. The LED lamp has a uniformity brightness.

Abstract: A direct type backlight module (30) includes a base (21), at least two lamp-fixing units (22) and at least one lamp tube (20). Each lamp-fixing unit is disposed on each corresponding opposite ends of the base. Each lamp-fixing unit includes a bottom board (222) and at least one clip element (224) formed on the bottom board. The lamp tube includes two electrodes defined at two ends thereof and two electrode holders (202) receiving the two electrodes respectively. The electrode holders of the lamp tube are fixed in the corresponding clip elements of the two lamp-fixing units, thus the lamp tube are mounted into the two aligned lamp-fixing units. In the present backlight module, the lamp tubes can be fixed into the clip elements tightly and also easily dissembled from the clip elements of the lamp-fixing units.

Abstract: An exemplary optical plate includes at least one transparent plate unit. The transparent plate unit includes a first surface, a second surface, a plurality of encircling V-shaped protrusions and a lamp-receiving portion. The second surface is opposite to the first surface. The encircling V-shaped protrusions are formed at the first surface and the second surface separately. The lamp-receiving portion is defined in one of the first surface and the second surface. A backlight module using the optical plate is also provided.

Abstract: A frame (34) for fixing an optical sheet (31) thereon includes a frame body (35) and at least a fastener (36). The frame body includes a plurality of contiguous sidewalls (352, 353, 354, and 355) and at least one latching portion (358) defined on the at least one of sidewalls. The fastener is mounted into the latching portion correspondingly such that the optical sheet is fixed on the top portions of sidewalls of the frame body. A backlight module using the frame is also provided, which has a lightweight, and also can be assembled easily.

Abstract: An exemplary backlight module (100) includes a diffusion sheet (110), a plurality of light sources (120), a plurality of supporting posts (130), a plurality of fasteners (140), and a reflective plate (150). The supporting posts are disposed generally between the reflective plate and the diffusion sheet to form a gap with a predetermined distance between the reflective plate and the diffusion sheet. The fasteners are engaged with the reflective plate and hold the light sources to mount the light sources in the gap above the reflective plate. The reflective plate comprises a plurality of elongate bumps (151), and the bumps face toward the diffusion sheet. Each bump is located midway between two adjacent light sources for concentrating and guiding reflected light beams toward a corresponding area of the diffusion sheet above the bump.

Abstract: An edge type backlight module includes a diffusion plate, at least a lamp-fixing unit, at least a light source and a reflective plate. The lamp-fixing unit is disposed under one edge of the diffusion plate. The lamp-fixing unit includes an inner surface facing the inner area underneath the diffusion plate, an outer surface opposite to the inner surface, and a plurality of fin structures defined on the outer surface. The light source is fixed on the inner surface of the lamp-fixing unit. The reflective plate is disposed adjacent the lamp-fixing unit and under the diffusion plate, facing the light source. Light rays emitted from the light source being uniformly reflected toward the diffusion plate by the reflective plate. The present backlight module has a thin body and also has a good heat dissipation capability.

Abstract: A spacer includes a base, at least a supporting column, and at least a clamp. The base includes at least a bridge-shaped portion and at least a flat portion. The bridge-shaped portion includes a bridge top surface, and two curving sidewalls respectively extend from two ends of the bridge top surface and connect with the flat portion. The supporting column is disposed on the bridge top surface of the base. The clamp is disposed on the flat portion of the base. A backlight module using the same spacers is also provided. The backlight module has a reflective plate having a plurality of projections parallel to linear light sources. The spacers are coupled to the projections and support a diffusing plate. Curving sidewalls of the spacers and the adjacent curving surface of the projections facing the corresponding light sources would give the present spacer and backlight module have good optical uniformity.

Abstract: An exemplary light emitting diode (30) includes a light output unit (31), an optical lens (33), and a reflective sheet (35). The optical lens is mounted on the light output unit. The optical lens includes a light input surface (331), a generally funnel-shaped top surface (333) and a light output surface (335). The funnel-shaped top surface is distal from the light input surface. The light output surface generally between the light input surface and the top surface is an annular bulging surface. It is relatively easy to configure an injection mold for making the optical lens.

Abstract: An exemplary optical plate (20) includes a first transparent layer (21), a second transparent layer (23), and a light diffusion layer (22). The light diffusion layer and the first and second transparent layers are integrally formed, with each of the first transparent and second transparent layers in immediate contact with the light diffusion layer. The light diffusion layer includes a transparent matrix resin (221), and diffusion particles (222) dispersed in the transparent matrix resin. The first transparent layer includes spherical depressions (211) at an outer surface (210) thereof that is farthest from the second transparent layer. The second transparent layer includes protrusions (231) at an outer surface (230) thereof that is farthest from the first transparent layer. Each protrusion is shaped in the form of a square pyramid. An exemplary direct type backlight module (200) using the optical plate is also provided.

Abstract: An exemplary optical plate includes a first transparent layer (21), a second transparent layer (23) and a light diffusion layer (22). The first transparent layer includes an outer surface (210) and a plurality of first conical frustum-shaped depressions (211) defined at the outer surface. The second transparent layer includes an outer surface (230) and a plurality of second conical frustum-shaped depressions (231) defined at the outer surface. The first transparent layer, the light diffusion layer, and the second transparent layer are integrally formed, with the first transparent layer in immediate contact with the light diffusion layer, and the second transparent layer in immediate contact with the light diffusion layer. The light diffusion layer includes a transparent matrix resin (221) and a plurality of diffusion particles (222) dispersed in the transparent matrix resin.

Abstract: An exemplary optical plate includes a first transparent layer, a second transparent layer and a light diffusion layer. The light diffusion layer is between the first and second transparent layers. The light diffusion layer, the first and second transparent layers are integrally formed. The light diffusion layer includes a transparent matrix resin and a plurality of diffusion particles dispersed in the transparent matrix resin. The first transparent layer defines a plurality of V-shaped protrusions at an outer surface thereof that is distalmost from the second transparent layer. The second transparent layer defines a plurality of spherical depressions at an outer surface thereof that is distalmost from the first transparent layer. A backlight module using the optical plate is also provided.

Abstract: An exemplary optical plate (20) includes a first transparent layer (21), a second transparent layer (23) and a light diffusion layer (22). The light diffusion layer, the first and second transparent layers are integrally formed, with the first transparent layer and the second transparent layer in immediate contact with the light diffusion layer. The light diffusion layer includes a transparent matrix resin (221) and a plurality of diffusion particles (222) dispersed in the transparent matrix resin. The first transparent layer includes a plurality of conical frustum protrusions (211) at an outer surface thereof that is distalmost from the second transparent layer. The second transparent layer includes a plurality of spherical depressions (231) at an outer surface thereof that is distalmost from the first transparent layer. A direct type backlight module using the optical plate is also provided.

Abstract: An exemplary optical plate includes a first transparent layer, a second transparent layer and a light diffusion layer between the first and second transparent layers. The above-described three layers are integrally formed, with the first transparent layer in immediate contact with the light diffusion layer, and the second transparent layer in immediate contact with the light diffusion layer. The first transparent layer defines micro depressions protruding from an outer surface thereof. Each micro depression has at least three side surfaces connected to each other, and a transverse width of each side surface increases along a direction away from the light diffusion layer. The second transparent layer defines conical frustum depressions at an outer surface thereof.

Abstract: An exemplary optical plate (20) includes a first transparent layer (21), a second transparent layer (23) and a light diffusion layer (22). The light diffusion layer is between the first and second transparent layers. The light diffusion layer, the first and second transparent layers are integrally formed. The light diffusion layer includes a transparent matrix resin and a plurality of diffusion particles dispersed in the transparent matrix resin. The first transparent layer includes a plurality of spherical protrusions (211) at an outer surface (210) thereof that is distalmost from the second transparent layer. The second transparent layer includes a plurality of depressions (231) at an outer surface (230) thereof that is distalmost from the first transparent layer. Each depression is shaped in the form of an inverted square pyramid. A direct type backlight module using the optical plate is also provided.