Backlight module with MJT LED and backlight unit including the same
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United States of America Patent
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Feb 26, 2019
Grant Date -
Jan 19, 2017
app pub date -
Sep 29, 2016
filing date -
Mar 6, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A direct type backlight unit disposed under a liquid crystal panel includes a backlight module including a printed circuit board including blocks arranged in an M×N matrix, in which M and N are natural numbers of 2 or greater, light emitting devices disposed on the printed circuit board such that at least one light emitting device is disposed in each block, each of the light emitting devices including light emitting cells disposed on a single substrate, and optical members disposed on the light emitting devices, each of the optical members being configured to change a light beam distribution of a corresponding light emitting device, and a backlight control module configured to control dimming levels of the light emitting devices and to independently control the light emitting devices disposed in different blocks.
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