Abstract: A display apparatus includes a receiving module, a processing module, a selecting module, a power circuit, and a backlight module. The receiving module receives a pulse width modulating (PWM) signal from an external component. The processing module processes the PWM signal in a predetermined time duration. The selecting module outputs the unadjusted PWM signal to the power circuit in the predetermined time duration, and outputs an adjusted signal after the predetermined duration. The power circuit generates a first driving current for driving the backlight module to emit lights in response to the unadjusted PWM signal while the processing module processes the PWM signal. The backlight module remains a predetermined brightness after the predetermined time.

Abstract: A switching circuit includes a first switch, a second switch, and a reservoir capacitor. The first switch includes a first gate, a first source, a first drain, and a first gate-to-source capacitor coupled between the first gate and the first source. The second switch includes a second gate, a second source, a second drain, and a second gate-to-source capacitor coupled between the second gate and the second source. The reservoir capacitor is coupled to both the first gate and the second gate. When the first switch is turned on, the first gate-to-source capacitor is charged by a power voltage source and accumulates charges. When the first switch is turned off, the reservoir capacitor is charged by the charges from the first gate-to-source capacitor. The charges stored in the reservoir can be used to charge the second gate-to-source capacitor.

Abstract: A switching circuit includes a first switch, a second switch, and a reservoir capacitor. The first switch includes a first gate, a first source, a first drain, and a first gate-to-source capacitor coupled between the first gate and the first source. The second switch includes a second gate, a second source, a second drain, and a second gate-to-source capacitor coupled between the second gate and the second source. The reservoir capacitor is coupled to both the first gate and the second gate. When the first switch is turned on, the first gate-to-source capacitor is charged by a power voltage source and accumulates charges. When the first switch is turned off, the reservoir capacitor is charged by the charges from the first gate-to-source capacitor. The charges stored in the reservoir can be used to charge the second gate-to-source capacitor.

Abstract: A display apparatus includes a receiving module, a processing module, a selecting module, a power circuit, and a backlight module. The receiving module receives a pulse width modulating (PWM) signal from an external component. The processing module processes the PWM signal in a predetermined time duration. The selecting module outputs the unadjusted PWM signal to the power circuit in the predetermined time duration, and outputs an adjusted signal after the predetermined duration. The power circuit generates a first driving current for driving the backlight module to emit lights in response to the unadjusted PWM signal while the processing module processes the PWM signal. The backlight module remains a predetermined brightness after the predetermined time.