摘要:
The invention relates to a side-emitting LED package and a manufacturing method thereof. The side-emitting LED package includes a substrate with an electrode formed thereon, and a light source disposed on the substrate and electrically connected to the electrode. The side-emitting LED package also includes a molded part having an upper surface with a center thereof depressed concavely, covering and protecting the substrate and the light source, and a reflection layer covering an entire upper surface of the molded part to reflect light sideward from the molded part which forms a light transmitting surface. The package is not restricted in the shape of the molded part and is not affected by the LED chip size, enabling a compact structure. The invention can also process a substrate by a PCB process, enabling mass-production.
摘要:
There is provided a backlight unit including: a chassis having an insulating layer formed on a top thereof; a circuit pattern formed on the insulating layer; a plurality of light emitting diodes formed on the insulating layer to electrically connect to the circuit pattern.
摘要:
An LED package and a fabrication method therefor. The LED package includes first and second lead frames made of heat and electric conductors, each of the lead frames comprising a planar base and extensions extending in opposed directions and upward directions from the base. The package also includes a package body made of a resin and configured to surround the extensions of the first and second lead frames to fix the first and second lead frames while exposing underside surfaces of the first and second lead frames. The LED package further includes a light emitting diode chip disposed on an upper surface of the base of the first lead frame and electrically connected to the bases of the first and second lead frames, and a transparent encapsulant for encapsulating the light emitting diode chip.
摘要:
Disclosed herein is a vertical light emitting type backlight module, for irradiating white light to the rear side of a liquid crystal display in the perpendicular direction. The vertical light emitting type backlight module comprises a) one or more LED array modules, each comprising a substrate having conductive patterns printed on upper and lower surfaces of the substrate, respectively, a plurality of LED devices mounted on the upper and lower surfaces of the substrate, respectively, for emitting light toward the front of respective surfaces of the substrate with the LED devices mounted thereon, and a plurality of lenses formed to surround the LED devices, respectively, for directing the light emitted from the LED devices in a direction perpendicular to the LED while being within a predetermined angle from an axis parallel to a plane of the backlight module, the substrate being mounted perpendicular to the plane of the backlight module such that the light emitted from the LED devices is emitted in a direction approximately parallel to the plane of the backlight module, and b) a reflection plate for each of the LED array modules for reflecting the light spread in the horizontal direction to change path of the light to the perpendicular direction.
摘要:
A process for producing a nitride semiconductor light-emitting device includes the steps of preparing a substrate, growing a p-type nitride semiconductor layer on the substrate by the MOCVD process using hydrazine-based gas as a nitrogen precursor and N2 gas as a carrier gas, forming an active layer on the p-type nitride semiconductor layer, forming an n-type conductive nitride semiconductor layer on the active layer, and forming p- and n-electrodes in electrical connection with the p- and n-type nitride semiconductors, respectively.
摘要:
Disclosed herein is a light emitting diode (LED) device. The light emitting diode device comprises a package formed with a terminal for applying an electrical signal, one or more LED chips mounted on the package such that the LED chips are electrically connected to the terminal, a lens formed to surround the LED chips on the package for changing path of light emitted from the LED chips to the horizontal direction with the difference of the refraction rates of the media, and a reflector formed on the lens for reflecting the light, emitted above the lens without being refracted in the horizontal direction at the lens, to the horizontal direction. The LED device reflects the light, which is deviated from the optical design range of the lens and emitted above the lens, back to the lens, thereby preventing the hot spot from being generated, and enhancing horizontal emission efficiency of the light.
摘要:
An LED package and a fabrication method therefor. The LED package includes first and second lead frames made of heat and electric conductors, each of the lead frames comprising a planar base and extensions extending in opposed directions and upward directions from the base. The package also includes a package body made of a resin and configured to surround the extensions of the first and second lead frames to fix the first and second lead frames while exposing underside surfaces of the first and second lead frames. The LED package further includes a light emitting diode chip disposed on an upper surface of the base of the first lead frame and electrically connected to the bases of the first and second lead frames, and a transparent encapsulant for encapsulating the light emitting diode chip.
摘要:
There are provided a plane light source and an LCD backlight unit having the same. A plane light source including light emitting device matrixes each having a plurality of light emitting devices arranged in rows and columns on a substrate according to an aspect of the invention includes: a first matrix having a plurality of light emitting devices arranged in rows and columns; and a second matrix having a plurality of light emitting devices arranged in rows and columns, the light emitting devices each located within a rectangle formed by four adjacent light emitting devices included in the first matrix, and forming angles θ satisfying the condition of 45°≦θ≦55° therebetween on the basis of a horizontal direction, wherein among pitches between one light emitting devices included in the light emitting device matrixes and another lighting light emitting device adjacent to the light emitting device, a pitch P1 between the light emitting device and the light emitting device diagonally across from the light emitting device satisfies the condition of 25 mm≦P1≦29 mm, and a pitch P2 between the light emitting device and another light emitting device located in a horizontal direction satisfies the condition of 34 mm≦P2≦38 mm.
摘要:
There is provided a light emitting module including: a printed circuit board; a plurality of light emitting diode chips disposed at a distance from one another on a conductive pattern formed on a top of the printed circuit board; and a connector formed on a bottom of the printed circuit board and electrically connected to the plurality of light emitting diode chips. The light emitting diode chips and the connector are optimally arranged to ensure that the light emitting module is suitably utilized as a high-density linear light source including a great number of light emitting diode chips and emits light outward with minimum loss.
摘要:
An LED package frame includes an LED chip and a heat conductive member made of high heat conductivity material. The heat conductive member has a receiving part at a lateral portion, and is mounted with the LED chip. A lead-coating assembly configured to be inserted into the receiving part of the heat conductive member, including a lead is inserted at one end into the receiving part of the heat conductive member, and electrically connected to the LED chip. An electrically insulating layer is placed in tight contact between the lead and the receiving part of the heat conductive member isolates the lead from the receiving part. With the lead inserted into the heat conductive member, it is possible to reduce size while maintaining high heat conductivity and stability.