Abstract: A display driver circuit of controlling a display panel includes an emission compensation circuit and an emission optimization circuit. The emission compensation circuit generates an emission compensation estimate according to at least a gray level, an initial emission duty cycle, and a pulse count of a number of emission pulses in a data frame of the display panel. The emission optimization circuit is coupled to the emission compensation circuit and generates a compensated emission signal according to the initial emission duty cycle and the emission compensation estimate, and drive the display panel according to the compensated emission signal.

Abstract: A portable charging device is provided. The portable charging device includes a stylus module and a charging module. The stylus module includes a stylus body unit and a power supply unit. The power supply unit is arranged in the stylus body unit. The charging module includes a casing unit, a control unit, and a power storage unit. The casing unit includes an opening, a first accommodating space, and a second accommodating space. The opening is communicated with the first accommodating space, and the first accommodating space is adjacent to the second accommodating space. The control unit is arranged in the second accommodating space. The power storage unit is arranged in the second accommodating space and electrically connected to the control unit. The stylus body unit is detachably arranged in the first accommodating space, and the power supply unit is electrically connected to the control unit.

Abstract: A display device includes a first display panel, a second display panel, a quantum dot layer and a backlight module. The first display panel includes a first substrate, a second substrate, and a first display medium layer disposed between the second substrate and the first substrate. The second display panel includes a third substrate, a fourth substrate and a second display medium layer disposed between the third substrate and the fourth substrate. The quantum dot layer is disposed between the second substrate and the fourth substrate, and the quantum dot layer has multiple first quantum dot particles, multiple second quantum dot particles and multiple diffusing particles dispersed therein. The backlight module is located at a side of the second display panel.

Abstract: A display device includes a first display panel, a second display panel, a quantum dot layer and a backlight module. The first display panel includes a first substrate, a second substrate, and a first display medium layer disposed between the second substrate and the first substrate. The second display panel includes a third substrate, a fourth substrate and a second display medium layer disposed between the third substrate and the fourth substrate. The quantum dot layer is disposed between the second substrate and the fourth substrate, and the quantum dot layer has multiple first quantum dot particles, multiple second quantum dot particles and multiple diffusing particles dispersed therein. The backlight module is located at a side of the second display panel.

Abstract: A pressure triggered stylus structure including a stylus housing unit, a writing unit, an electrically conductive unit, a control unit, a first trigger unit, a second trigger unit, an elastic unit and a sensing unit is provided. When the writing unit is at an initial position and the electrically conductive unit is connected to the first trigger unit and the second trigger unit, the first trigger unit and the second trigger unit are in a connected state. On the other hand, when the writing unit is off the initial position and the electrically conductive unit is away from the first trigger unit and the second trigger unit, the first trigger unit and the second trigger unit are in a disconnected state, and the control unit detects a sensing state of the sensing unit according to the disconnected state.

Abstract: A thin electromagnetic handwriting pen includes a casing unit, a circuit unit, an electromagnetic unit and a pen core unit. The casing unit includes a thin pen-shaped casing structure. The circuit unit includes a circuit substrate disposed inside the thin pen-shaped casing structure. The electromagnetic unit includes a hollow holder and an electromagnetic coil wound around the hollow holder. Both the hollow holder and the electromagnetic coil are embedded in the thin pen-shaped casing structure, and the electromagnetic coil is fixed between the thin pen-shaped casing structure and the hollow holder and electrically connected to the circuit substrate. The pen core unit includes a pen core structure movably disposed inside the thin pen-shaped casing structure and passing through the hollow holder, and one portion of the pen core structure is exposed outside the thin pen-shaped casing structure.

Abstract: This instant disclosure is related to a capacitive stylus and a tilt angle detecting method thereof. The capacitive stylus is acting on a touch pad. The capacitive stylus includes a sensing electrode unit and a driving electrode unit, or the capacitive stylus is provided with a first sensing electrode unit and a second sensing electrode unit. The capacitive stylus further includes a tilt angle corresponding table and a direction corresponding table to determine the tilt angle and tilt direction of the capacitive stylus on the touch pad.

Abstract: This instant disclosure is related to a capacitive stylus and a tilt angle detecting method thereof. The capacitive stylus is acting on a touch pad. The capacitive stylus includes a sensing electrode unit and a driving electrode unit, or the capacitive stylus is provided with a first sensing electrode unit and a second sensing electrode unit. The capacitive stylus further includes a tilt angle corresponding table and a direction corresponding table to determine the tilt angle and tilt direction of the capacitive stylus on the touch pad.

Abstract: A method and an apparatus for performing charging port detection control are provided, where the method is applied to an electronic device, a communication port of the electronic device has a functionality of obtaining power from an external power source for the electronic device, and a power path switching unit of the electronic device is arranged to control electrical connection between a system within the electronic device and a battery of the electronic device. The method may include the steps of: performing charging port detection; and control operation(s) according to the charging port detection. For example, the method may include: controlling the power path switching unit to have different configuration according to the charging port detection in order to charge the battery with different charging profiles; and detecting the system voltage level during charging for switching from the constant current mode to the constant voltage mode.

Abstract: A thin electromagnetic handwriting pen includes a casing unit, a circuit unit, an electromagnetic unit and a pen core unit. The casing unit includes a thin pen-shaped casing structure. The circuit unit includes a circuit substrate disposed inside the thin pen-shaped casing structure. The electromagnetic unit includes a hollow holder and an electromagnetic coil wound around the hollow holder. Both the hollow holder and the electromagnetic coil are embedded in the thin pen-shaped casing structure, and the electromagnetic coil is fixed between the thin pen-shaped casing structure and the hollow holder and electrically connected to the circuit substrate. The pen core unit includes a pen core structure movably disposed inside the thin pen-shaped casing structure and passing through the hollow holder, and one portion of the pen core structure is exposed outside the thin pen-shaped casing structure.

Abstract: A power converter includes a wave generator, a low pass filter, a first control circuit, and a second control circuit. The wave generator receives an input voltage, and converts the input signal into a wave signal according to a first control signal and a second control signal. The low pass filter filters the wave signal to generate an output voltage. The first control circuit generates the first control signal according to the wave signal and the output voltage. The second control circuit generates the second control signal according to the wave signal and the output voltage.

Abstract: A thin electromagnetic handwriting pen includes a casing unit, a circuit unit, an electromagnetic unit and a pen core unit. The casing unit includes a thin pen-shaped casing structure. The circuit unit includes a circuit substrate disposed inside the thin pen-shaped casing structure. The electromagnetic unit includes a hollow holder and an electromagnetic coil wound around the hollow holder. Both the hollow holder and the electromagnetic coil are embedded in the thin pen-shaped casing structure, and the electromagnetic coil is fixed between the thin pen-shaped casing structure and the hollow holder and electrically connected to the circuit substrate. The pen core unit includes a pen core structure movably disposed inside the thin pen-shaped casing structure and passing through the hollow holder, and one portion of the pen core structure is exposed outside the thin pen-shaped casing structure.

Abstract: A hybrid power module for supplying a power to a power amplifier is provided. The hybrid power module includes a DC-DC converter and a linear regulator. The DC-DC converter provides a first current to the power amplifier via a first inductor according to an operating frequency and an envelope tracking signal. The linear regulator provides a second current to the power amplifier via a first capacitor according to the envelope tracking signal. A switch-mode power supply (SMPS) ripple voltage caused by the DC-DC converter is reduced by the linear regulator.

Abstract: A method and an apparatus for performing charging port detection control are provided, where the method is applied to an electronic device, a communication port of the electronic device has a functionality of obtaining power from an external power source for the electronic device, and a power path switching unit of the electronic device is arranged to control electrical connection between a system within the electronic device and a battery of the electronic device. The method may include the steps of: performing charging port detection; and control operation(s) according to the charging port detection. For example, the method may include: controlling the power path switching unit to have different configuration according to the charging port detection in order to charge the battery with different charging profiles; and detecting the system voltage level during charging for switching from the constant current mode to the constant voltage mode.

Abstract: An extension flash module is provided in the present invention. The extension flash module adopts xenon flash light and is for attaching on the headphone jack of a mobile device. When the extension flash module operates, the voltage output from the headphone connector is boosted to provide a high voltage to the extension flash module. When the high voltage is charged to a rate voltage, the extension flash module sends a charging complete signal to the mobile device through the microphone terminal of the headphone connector. When shutter instruction is performed, the mobile device triggers the extension flash module to flash.

Abstract: An extension flash module is provided in the present invention. The extension flash module adopts xenon flash light and is for attaching on the headphone jack of a mobile device. When the extension flash module operates, the voltage output from the headphone connector is boosted to provide a high voltage to the extension flash module. When the high voltage is charged to a rate voltage, the extension flash module sends a charging complete signal to the mobile device through the microphone terminal of the headphone connector. When shutter instruction is performed, the mobile device triggers the extension flash module to flash.

Abstract: A method and an apparatus for performing charging port detection control are provided, where the method is applied to an electronic device, a communication port of the electronic device has a functionality of obtaining power from an external power source for the electronic device, and a power path switching unit of the electronic device is arranged to control electrical connection between a system within the electronic device and a battery of the electronic device. The method may include the steps of: performing charging port detection; and control operation(s) according to the charging port detection. For example, the method may include: controlling the power path switching unit to have different configuration according to the charging port detection in order to charge the battery with different charging profiles; and detecting the system voltage level during charging for switching from the constant current mode to the constant voltage mode.

Abstract: A hybrid power module for supplying a power to a power amplifier is provided. The hybrid power module includes a DC-DC converter and a linear regulator. The DC-DC converter provides a first current to the power amplifier via a first inductor according to an operating frequency and an envelope tracking signal. The linear regulator provides a second current to the power amplifier via a first capacitor according to the envelope tracking signal. A switch-mode power supply (SMPS) ripple voltage caused by the DC-DC converter is reduced by the linear regulator.

Abstract: A thin electromagnetic handwriting pen includes a casing unit, a circuit unit, an electromagnetic unit and a pen core unit. The casing unit includes a thin pen-shaped casing structure. The circuit unit includes a circuit substrate disposed inside the thin pen-shaped casing structure. The electromagnetic unit includes a hollow holder and an electromagnetic coil wound around the hollow holder. Both the hollow holder and the electromagnetic coil are embedded in the thin pen-shaped casing structure, and the electromagnetic coil is fixed between the thin pen-shaped casing structure and the hollow holder and electrically connected to the circuit substrate. The pen core unit includes a pen core structure movably disposed inside the thin pen-shaped casing structure and passing through the hollow holder, and one portion of the pen core structure is exposed outside the thin pen-shaped casing structure.

Abstract: A power converter includes a wave generator, a low pass filter, a first control circuit, and a second control circuit. The wave generator receives an input voltage, and converts the input signal into a wave signal according to a first control signal and a second control signal. The low pass filter filters the wave signal to generate an output voltage. The first control circuit generates the first control signal according to the wave signal and the output voltage. The second control circuit generates the second control signal according to the wave signal and the output voltage.