摘要:
A backlight unit and a display module employing the backlight unit. The backlight unit of a display apparatus displaying an image, the backlight unit including: a light guide panel guiding light to the display apparatus; a circuit board having a plurality of light source devices mounted thereon and which is formed at a side of the light guide panel; a light leakage preventing portion including: an interval removing portion formed in the light guide panel, and an adhesive portion attached to the interval removing portion and formed on the circuit board, wherein the light leakage preventing portion is formed in a portion of the circuit board attached to the light guide panel. The light leakage preventing portion is formed in a side portion of a light guide panel. Thus, even when an adhesive portion is not formed in front of a light source device of a circuit board, a height difference between a portion of the circuit board where the adhesive portion is formed and a portion of the circuit board where the adhesive portion is not formed can be compensated, thereby improving brightness of a backlight unit and preventing light from leaking.
摘要:
A flexible printed circuit board includes a base film made of an insulating material, a power application wiring disposed on a first surface of the base film, a bypass wiring disposed on a second surface, opposite the first surface, of the base film, a first connection wiring which electrically connects the power application wiring to the bypass wiring, a second connection wiring spaced apart from the first connection wiring and which electrically connects the power application wiring to the bypass wiring, and a first cover film disposed on the first surface of the base film to cover at least a first portion of the second connection wiring. At least a first portion of the first connection wiring is exposed through the first cover film.
摘要:
A water leakage-acoustic sensing method in a steam generator of a sodium-cooled fast reactor, the method including: calculating a standard deviation and an average of an octave band by octave band analysis of an input signal sound received from at least one predetermined acoustic sensor; comparing the calculated standard deviation and the calculated average of the octave band, and determining a size of the octave band based on a comparison result; calculating an average of standard deviations of the octave band recomposed by the determined size and normalizing the average of standard deviations; applying a predetermined weight, established by a predetermined neural network learning algorithm, to the normalized average of standard deviations; and generating leakage determination data based on the average of standard deviations to which the weight is applied.
摘要:
An apparatus and a method for opportunistic user scheduling of two-cell multiple user Multiple Input Multiple Output (MIMO) by a base station, the method comprising: broadcasting signals through random beams to users; and receiving Channel Quality Information (CQI) from best K user set. The CQI is calculated based on all possible combinations of transmit beamforming vectors.