Abstract: An LED lamp includes at least one LED mounted on a PCB, a floodlight cover, a power source base, and a heat dissipation transfer member. The floodlight cover transmits light from the at least one LED and has an inner face facing an upper inner space of the LED lamp. The power source base is coupled to a terminal at one end of the power source base and is coupled to the floodlight cover at the other end of the power source base. The power source base is made of an insulation material and forms a surface layer of the LED lamp from the one end of the power source base to the other end of the power source base. The power source base has an inner face facing a lower inner space of the LED lamp. The heat dissipation transfer member has a heat sink being in contact with the PCB, and a main body formed along with an entire surface of at least one of the inner face of the power source base and the inner face of the floodlight cover.

Abstract: The present invention relates to an LED lamp in which, because the lamp has therein a heat dissipation transfer member and the power source base thereof is made of materials including polycarbonate, etc. with a high emission rate of radiation so as to enhance its surface heat dissipation constant, the power source base has sufficient heat dissipation performance and, thus, a separate insulation circuit is not necessary, thereby improving reliability and productivity of the lamp as well as reducing the cost of manufacturing.

Abstract: An LED lighting apparatus dissipating heat by fanless ventilation including a heat radiation housing that has a heat radiation frame provided around the body of the heat radiation housing and spaced apart from the body and also has linear heat radiation fins configured to minimize interference to air flow and to maximize the heat radiation area, thereby expanding the heat radiation area significantly and thus dissipating heat much more effectively through ventilation by natural convection without a blowing fan, and consequently, extending the life span of the LED lighting apparatus and improving its quality. The LED lighting apparatus comprises a light source part including at least one LED and a PCB used to mount the LED; and a heat radiation housing provided at the upper portion thereof with a terminal part, receiving and supporting the light source part and dissipating heat.

Abstract: A heat dissipating device having a linear heat dissipating unit and a fanless LED lamp using the device are disclosed. The heat dissipating device includes a heat dissipating bracket having a heat absorbing part, and a linear heat dissipating unit which is coupled to the heat dissipating bracket and has a coil shape achieved by the continuous winding of a wire into a spiral shape. The heat dissipating bracket includes an insert hole corresponding to part of the linear heat dissipating unit in such a way as to be in surface contact with the part of the linear heat dissipating unit, and the linear heat dissipating unit protrudes to the outside of the heat absorbing part of the heat dissipating bracket to perform a heat exchange process for dissipating heat through natural convection ventilation. The fanless LED lamp includes the linear heat dissipating unit as a heat dissipating means.

Abstract: Disclosed herein is a Light Emitting Diode (LED) lighting lamp, which is coupled with the threadedly coupled receptacle of a vertically mounted post lamp support. The LED lighting lamp includes a light source unit, a heat sink means, and a housing. The light source unit includes one or more LEDs and a PCB. The heat sink means is bonded to the PCB to radiate heat from the light source unit. The housing is configured to support the heat sink means, and to have a threadedly coupled power source connection part. In the LED lighting lamp, the LEDs of the light source unit are supported by and disposed on the heat sink means so that light beams from the LEDs are emitted at a predetermined downward inclination angle.

Abstract: Disclosed herein is a backlight unit, capable of easily forming a curved or three-dimensional shape. The backlight unit according to the present invention comprises a light guide panel which includes a light guide plate having on one surface or both surfaces thereof a plurality of notches, an uneven dot pattern, a printed dot pattern or a sanded surface, or a light diffusion plate; a luminous means which includes a lamp mounted on a PCB to emit light to the light guide panel; a groove formed along an edge of the light guide panel so that the luminous means is installed in the light guide panel; and a thin heat radiating plate fixed on a back surface of the PCB along the groove.

Abstract: The present invention provides a light guide panel with one or more slanted light guiding parts for backlight units for liquid crystal display (LCD) and for advertisement or illumination, wherein the slanted light guiding part is provided at one side end of the light guide panel, with its one end adjacent to a light source being thicker than the other end adjacent to the light guide panel, to have a slope in which the light emitted from the light source can be totally internal-reflected in the light guide panel, so that the brightness can be maximized and the volume and weight of the light guide panel can be reduced to facilitate its handling and installation, thus resulting in significant reduction of manufacturing expenses.

Abstract: A V-cutter for use in manufacturing a light guide panel of the backlight unit in liquid crystal display (LCD), and more specifically, a kit with a plurality of pins for the V-cutter is disclosed. The pin kit may be used to form a plurality of V-shaped grooves spaced apart by a desired, varying interval on the light guide panel. The pin kit may include a buffer plate (10) fixed to a lift piece (7), an elastic member (11) fixed in the longitudinal direction at bottom thereof, a guide plate (14) in which insertion holes (15) for a plurality of pins (12) are formed to permit contact between the pins and the elastic member, and a plurality of pins (12) to be inserted into the insertion holes of the guide plate for forming V-shaped grooves (3) on the light guide panel (1).

Abstract: A V-cutter for use in forming V-shaped grooves (3) on a light guide panel (1) of the backlight unit for a liquid crystal display (LCD) is disclosed. The V-cutter may include a Z-axis lift piece (7) and a W-axis lift piece (8), each of which has a pin kit (10a, 10b) with a plurality of pins (9a, 9b) attached at the bottom thereof. The pins (9a, 9b) are preferably equal in number and spacing to the V-shaped grooves (3) to be formed. The lift pieces (7, 8) may be vertically actuated by a Z-axis controller (5) and a W-axis controller (6). The light guide panel (1) is preferably fixtured to a table (11). The lift pieces (7, 8) are configured to move with respect to the table (11) so that, through successive X-axis and Y-axis operations, the V-shaped grooves can be formed in perpendicular directions with only two reciprocating motions. As a result, the manufacturing cost of the light guide panels (1) is reduced.