Abstract: A flyback power converter includes a transformer which has a primary winding, a secondary winding, and an auxiliary winding; a power switch controlling the conduction of the primary winding; and a control circuit generating a control signal to control the power switch, wherein the control circuit is an integrated circuit having a current sensing pin for obtaining a current sensing signal of a current through the power switch. The flyback power converter further includes a temperature-sensitive resistor or a mode detection resistor coupled between the auxiliary winding and the current sensing pin. The temperature-sensitive resistor provides a temperature-related signal for the control circuit to perform an over-temperature protection, or the temperature-sensitive resistor provides a mode detection signal for the control circuit to determine an operation mode of the flyback power converter.

Abstract: A voltage converter circuit includes a voltage converter controller which generates a PWM signal to operate a power switch for voltage conversion. The voltage converter controller includes a sensing pin for sensing a current and the voltage converter controller receives a power supply. A parameter setting method for the voltage converter circuit includes: during a start-up stage, when the power supply increases above a predetermined reference level, the voltage converter controller outputting a current through the sensing pin; and setting at least one parameter of the voltage converter controller according to a voltage at the sensing pin.

Abstract: The present invention provides a flyback power converter and a control circuit. The flyback power converter includes a transformer which has a primary winding, a secondary winding, and an auxiliary winding; a power switch controlling the conduction of the primary winding; and a control circuit generating a control signal to control the power switch, wherein the control circuit is an integrated circuit having a current sensing pin for obtaining a current sensing signal of a current through the power switch. The flyback power converter further includes a temperature-sensitive resistor or a mode detection resistor coupled between the auxiliary winding and the current sensing pin, for providing a temperature-related signal for the control circuit to perform an over-temperature protection, or for providing a mode detection signal for the control circuit to determine an operation mode of the flyback power converter.

Abstract: A jittering frequency control circuit and method for a switching mode power supply enlarge the uttering frequency range of the switching frequency of the switching mode power supply when the switching mode power supplier enters a frequency reduction mode, to improve the electro-magnetic interference of the switching mode power supply operating with the frequency reduction mode.

Abstract: A voltage converter circuit includes a voltage converter controller which generates a PWM signal to operate a power switch for voltage conversion. The voltage converter controller includes a sensing pin for sensing a current and the voltage converter controller receives a power supply. A parameter setting method for the voltage converter circuit includes: during a start-up stage, when the power supply increases above a predetermined reference level, the voltage converter controller outputting a current through the sensing pin; and setting at least one parameter of the voltage converter controller according to a voltage at the sensing pin.

Abstract: A device includes a top metal layer; a UTM line over the top metal layer and having a first thickness; and a passivation layer over the UTM line and having a second thickness. A ratio of the second thickness to the first thickness is less than about 0.33.

Abstract: A circuit and method are provided for a power converter to select one from a plurality of current limit signals as a final current limit signal according to the present duty ratio of a power switch for the pulse width modulation of the next cycle, so that the duty ratio of the power switch in the next cycle is prevented from acute variation to eliminate sub-harmonic which otherwise may happen.

Abstract: A pulse width modulation controller and method for output ripple reduction of a jittering frequency switching power supply detect the current of a power switch of the switching power supply to generate a current sense signal, and adjust the gain or the level of the current sense signal according to the switching frequency of the power switch to adjust the on time of the power switch, to reduce the output ripple of the switching power supply caused by the jittering frequency of the switching power supply.

Abstract: Disclosed are methods of detection for output short circuit of a flyback power supply, which detect the current sense signal provided by a current sense resistor serially connected to a power switch of the flyback power supply, and thus quickly identify whether or not the flyback power supply suffers output short circuit.

Abstract: A device includes a top metal layer; a UTM line over the top metal layer and having a first thickness; and a passivation layer over the UTM line and having a second thickness. A ratio of the second thickness to the first thickness is less than about 0.33.

Abstract: A pulse width modulation controller and method for output ripple reduction of a jittering frequency switching power supply detect the current of a power switch of the switching power supply to generate a current sense signal, and adjust the gain or the level of the current sense signal according to the switching frequency of the power switch to adjust the on time of the power switch, to reduce the output ripple of the switching power supply caused by the jittering frequency of the switching power supply.

Abstract: A jittering frequency control circuit and method for a switching mode power supply enlarge the uttering frequency range of the switching frequency of the switching mode power supply when the switching mode power supplier enters a frequency reduction mode, to improve the electro-magnetic interference of the switching mode power supply operating with the frequency reduction mode.

Abstract: A pixel structure of a display including a first substrate, a second substrate, and a liquid crystal (LC) layer disposed therebetween. The pixel structure comprises a plurality of first, second, and third sub-pixels; a plurality of alignment controlling patterns, respectively formed in the first, second and third sub-pixels for controlling alignment direction of LC molecules of the LC layer; a plurality of opaque regions, respectively formed in the first, second, and third sub-pixels, and substantially aligned with the portion of the alignment controlling patterns, so that the alignment controlling patterns are shielded by the substantially corresponded opaque regions having different areas in at least two of the colored sub-pixels.

Abstract: A pixel structure of a display including a first substrate, a second substrate, and a liquid crystal (LC) layer disposed therebetween. The pixel structure comprises a plurality of first, second, and third sub-pixels; a plurality of alignment controlling patterns, respectively formed in the first, second and third sub-pixels for controlling alignment direction of LC molecules of the LC layer; a plurality of opaque regions, respectively formed in the first, second, and third sub-pixels, and substantially aligned with the portion of the alignment controlling patterns, so that the alignment controlling patterns are shielded by the substantially corresponded opaque regions having different areas in at least two of the colored sub-pixels.

Abstract: A circuit and method are provided for a power converter to select one from a plurality of current limit signals as a final current limit signal according to the present duty ratio of a power switch for the pulse width modulation of the next cycle, so that the duty ratio of the power switch in the next cycle is prevented from acute variation to eliminate sub-harmonic which otherwise may happen.

Abstract: A pixel structure of a display including a first substrate, a second substrate, and a liquid crystal (LC) layer disposed therebetween. The pixel structure comprises a plurality of first, second, and third sub-pixels; a plurality of alignment controlling patterns, respectively formed in the first, second and third sub-pixels for controlling alignment direction of LC molecules of the LC layer; a plurality of opaque regions, respectively formed in the first, second, and third sub-pixels, and substantially aligned with the portion of the alignment controlling patterns, so that the alignment controlling patterns are shielded by the substantially corresponded opaque regions having different areas in at least two of the colored sub-pixels.

Abstract: Disclosed is a system and method of network data access management, a client terminal sends out a file request to a server, said server transmits said file request to a database and fetches a file corresponding to said file request from said database and transmits it back to said client terminal, said server transmits and stores file information of said file into a virtual database, such that when said client terminal edits said file, it will also modify said file information of said corresponding file in said virtual database simultaneously, and upon finishing editing said file, said virtual database transmits said edited file information to said database through said server. Then, said database will modify said file in said database as based on said edited file information, thus decreasing number of access of said database by said client terminal, reducing bandwidth required significantly, and increasing efficacy of network data access.

Abstract: A charger has two pins for connecting with a battery therebetween, and an apparatus and method are proposed to determine to wake up or turn off the charger according to a voltage or a current detected from the two pins, to reduce the standby power consumption of the charger.

Abstract: Disclosed are methods of detection for output short circuit of a flyback power supply, which detect the current sense signal provided by a current sense resistor serially connected to a power switch of the flyback power supply, and thus quickly identify whether or not the flyback power supply suffers output short circuit.

Abstract: A method for fabricating color filters includes: providing a substrate; forming a dry film having a top layer and a bottom layer on the substrate; performing a patterning process on the dry film to form a patterned dry film having a plurality of banks and openings, wherein each of the openings is located between two adjacent banks; disposing at least one color filter material in each of the openings; and removing the top layer of the dry film.