Abstract: The present invention relates to a light-emitting module and a light-emitting display panel. The light-emitting module comprises a substrate, one ore more light-emitting unit, and a driving unit. The substrate comprises a power input, a ground, a data input, a data output, a clock input, and a clock output. The one or more light-emitting unit is disposed on the substrate. The driving unit is connected electrically to the data input, the clock input, and the power input, respectively, and controls the color-scale changes of the light-emitting unit. A plurality of light-emitting modules are disposed on the circuit board. The control signal controlling the plurality of light-emitting modules is transmitted in series. It isn't required to connect the plurality of light-emitting module to additional connecting wires for signal control. Accordingly, shading of the light passing through the display panel and inferior transmittance due to excess electrical connecting wires may be prevented.

Abstract: The present disclosure relates to a duty cycle adjusting circuit of a lighting system and method thereof for sensing light of a first color and a second color emitted by a light emitting device of the first color and a light emitting device of the second color to generate corresponding intensity values. Then a first pulse width correcting value and a second pulse width correcting value can be calculated for adjusting a first duty cycle and a second duty cycle of a driving current to adjust the illuminating intensity of the light emitting devices of the first and the second colors. Through these adjusting steps, the light of the first and the second colors is within a predetermined range of color temperature. Therefore, light source for stable light in color temperature is provided.

Abstract: The present disclosure relates to a duty cycle adjusting circuit of a lighting system and method thereof for sensing light of a first color and a second color emitted by a light emitting device of the first color and a light emitting device of the second color to generate corresponding intensity values. Then a first pulse width correcting value and a second pulse width correcting value can be calculated for adjusting a first duty cycle and a second duty cycle of a driving current to adjust the illuminating intensity of the light emitting devices of the first and the second colors. Through these adjusting steps, the light of the first and the second colors is within a predetermined range of color temperature. Therefore, light source for stable light in color temperature is provided.