摘要:
Provided are a light source unit including a plurality of light-emitting diode (LED) packages, which are directly electrically connected to each other, and a backlight assembly having the light source unit. The light source unit includes a first LED package and a second LED package which are adjacent to each other, wherein each of the first LED package and the second LED package includes an LED chip, a lead frame which supplies current to the LED chip, and a housing which fixes the LED chip and the lead frame in place, wherein an end of the lead frame of the first LED package directly contacts an end of the lead frame of the second LED package.
摘要:
A display apparatus includes a display panel, at least one light emitting diode package, and at least one light guide plate. The light emitting diode package includes a frame extending in a first direction, a plurality of branches branched from the frame in a second direction, and at least two light emitting diode chips inserted between and coupled with two adjacent branches.
摘要:
A display device includes a display panel which displays an image, a backlight unit which supplies the display panel with light, an upper cover, and a lower cover. The upper and lower covers accommodate the display panel and the backlight unit. The backlight unit includes light guide plates spaced apart from each other, a light source part, an optical member and an optical diffusion member overlapping a space between the light guide plates. The optical diffusion member includes a diffusing part and a supporting part. The diffusing part faces the optical member, overlaps the space between the light guide plates, and diffuses light emitted from the light source part toward the optical member through the space between the light guide plates. The supporting part protrudes from a surface of the diffusing part which is opposite to the optical member, and is in a space between the light sources.
摘要:
A display apparatus includes a display panel, at least one light emitting diode package, and at least one light guide plate. The light emitting diode package includes a frame extending in a first direction, a plurality of branches branched from the frame in a second direction, and at least two light emitting diode chips inserted between and coupled with two adjacent branches.
摘要:
Provided are a light source unit including a plurality of light-emitting diode (LED) packages, which are directly electrically connected to each other, and a backlight assembly having the light source unit. The light source unit includes a first LED package and a second LED package which are adjacent to each other, wherein each of the first LED package and the second LED package includes an LED chip, a lead frame which supplies current to the LED chip, and a housing which fixes the LED chip and the lead frame in place, wherein an end of the lead frame of the first LED package directly contacts an end of the lead frame of the second LED package.
摘要:
A backlight assembly includes a light-emitting apparatus, a multi-channel current controller and a heat distributor. The light-emitting apparatus includes a plurality of light-emitting diode (“LED”) strings. The multi-channel current controller includes a plurality of current control circuits, each of which includes an input channel electrically connected an LED string of the plurality of LED strings and which controls a magnitude of a driving current flowing through the LED string. The heat distributor is electrically connected to the input channel and the LED string, and is disposed adjacent to the input channel
摘要:
A light source module comprises a light source including a plurality of light emitting units and a voltage current source for supplying driving power to the light source according to a plurality of luminance control signals. The luminance control signals are dimming signals. The light source module also comprises a multi-channel current controller for adjusting luminance of the plurality of light emitting units respectively according to the plurality of luminance control signals.
摘要:
A light-source module for a display device and a display device having the same, in which the light-source module includes a plurality of light-emitting units, a current difference controller, and a converter. The light-emitting units are connected in parallel between a driving power input terminal and a ground terminal to emit light by the diving power and to output respective feedback control signals. The current difference controller is configured to output a plurality of power control signals according to the respective feedback control signals. The converter is configured to change a current of the driving power provided to the light-emitting units according to the power control signals. The amounts of currents flowing through the light emitting units each having a plurality of light emitting diodes are measured and the levels of voltages applied to the light-emitting units are changed according to the measurement results. Accordingly, a current difference between the light emitting units can be reduced and the brightness uniformity of the light source can be improved.
摘要:
A display device includes a display panel which displays an image, a backlight unit which supplies the display panel with light, an upper cover, and a lower cover. The upper and lower covers accommodate the display panel and the backlight unit. The backlight unit includes light guide plates spaced apart from each other, a light source part, an optical member and an optical diffusion member overlapping a space between the light guide plates. The optical diffusion member includes a diffusing part and a supporting part. The diffusing part faces the optical member, overlaps the space between the light guide plates, and diffuses light emitted from the light source part toward the optical member through the space between the light guide plates. The supporting part protrudes from a surface of the diffusing part which is opposite to the optical member, and is in a space between the light sources.
摘要:
A backlight unit and a display device having a backlight unit are disclosed. The backlight unit includes an LED substrate,. The LED substrate includes a plurality of emission regions. An LED is provided in each emission region. An LED driver drives the LED. An LED controller supplies a dimming control signal to the LED driver. The LED controller is provided on a driving board. A first connection unit is provided in the LED substrate. A second connection unit is provided in the driving board. The second connection unit is capable of coupling with the first connection unit.