Abstract: A gain controlling system, a sound playback system, and a gain controlling method thereof are disclosed. The gain controlling system includes a main gain control unit, a sub gain control unit, and a logic control unit. The main gain control unit has a first step-by-step adjusting magnitude; the sub gain control unit has a second step-by-step adjusting magnitude; wherein the second step-by-step adjusting magnitude is smaller than the first step-by-step adjusting magnitude. The logic control unit is used for controlling the main and the sub gain control unit to transform an analog signal into a converted signal according to an adjustment command signal and further determining whether an adjusting magnitude required by the adjustment command signal is larger than a maximum gain range of the sub gain control unit. If yes, the logic control unit controls the main control unit and the sub gain control unit repeatedly.

Abstract: A gain controlling system, a sound playback system, and a gain controlling method thereof are disclosed. The gain controlling system includes a main gain control unit, a sub gain control unit, and a logic control unit. The main gain control unit has a first step-by-step adjusting magnitude; the sub gain control unit has a second step-by-step adjusting magnitude; wherein the second step-by-step adjusting magnitude is smaller than the first step-by-step adjusting magnitude. The logic control unit is used for controlling the main and the sub gain control unit to transform an analog signal into a converted signal according to an adjustment command signal and further determining whether an adjusting magnitude required by the adjustment command signal is larger than a maximum gain range of the sub gain control unit. If yes, the logic control unit controls the main control unit and the sub gain control unit repeatedly.

Abstract: A noise reduction circuit for reducing pulse noise caused at switching of an analog audio processing circuit comprises a voltage division resistor circuit, an end of the voltage division resistor circuit being electrically connected to an output end of a switching circuit of the analog audio processing circuit, and another end of the voltage division resistor circuit being electrically connected to a reference voltage; a plurality of voltage-division points of the voltage division resistor circuit are connected respectively with a plurality of controllable switches, while other ends of the plurality of controllable switches are connected together to form an output end.

Abstract: A system having an electrostatic discharge protection structure and a method for manufacturing the structure are provided. The structure comprises a conducting layer, a material layer and a bridging layer wherein the conducting layer is divided into a first conducting portion and a second conducting portion to form a gap therebetween. The material layer is disposed onto the conducting layer, forming a first via hole to expose a part of the first conducting portion and a second via hole to expose a part of the second conducting portion. Finally, the bridging layer disposed onto the material layer electrically connects the first conducting portion to the second conducting portion within the first and second via holes, whereby the electrostatic produced during the manufacturing process would be prevented from damaging the driver circuits.

Abstract: A system having an electrostatic discharge protection structure and a method for manufacturing the structure are provided. The structure comprises a conducting layer, a material layer and a bridging layer wherein the conducting layer is divided into a first conducting portion and a second conducting portion to form a gap therebetween. The material layer is disposed onto the conducting layer, forming a first via hole to expose a part of the first conducting portion and a second via hole to expose a part of the second conducting portion. Finally, the bridging layer disposed onto the material layer electrically connects the first conducting portion to the second conducting portion within the first and second via holes, whereby the electrostatic produced during the manufacturing process would be prevented from damaging the driver circuits.

Abstract: The invention provides a method for manufacturing systems for displaying images. A representative system incorporates electroluminescent devices, comprising the following steps. A substrate having an active region and a pad region is provided. A thin film transistor is formed on the active region and a pad electrode is formed on the pad region, wherein the thin film transistor comprise a source electrode, a gate electrode, a drain electrode, and a gate insulator. A protective layer is formed on the active region and pad region. A planarization layer is formed on the active region and pad region, after forming color filter patterns on the protective layer on the active region. A first contact hole is formed to pass through the planarization layer of the active region, exposing the surface of the protective layer directly on the drain electrode.

Abstract: A noise reduction circuit for reducing pulse noise caused at switching of an analog audio processing circuit comprises a voltage division resistor circuit, an end of the voltage division resistor circuit being electrically connected to an output end of a switching circuit of the analog audio processing circuit, and another end of the voltage division resistor circuit being electrically connected to a reference voltage; a plurality of voltage-division points of the voltage division resistor circuit are connected respectively with a plurality of controllable switches, while other ends of the plurality of controllable switches are connected together to form an output end.