Abstract: A display device includes a substrate, a first light emitting element, and a second light emitting element. The substrate includes at least one pixel area. The first light emitting element and the second emitting element are disposed in the pixel area. The first light emitting element emits light of a first color and has a first luminous efficiency-injection current density function. The second light emitting element emits light of a second color and has a second luminous efficiency-injection current density function, intersected with the first luminous efficiency-injection current density function to define a critical transform current density. The light of the first color and the light of the second color have a same color system.

Abstract: A light source switching system and a method thereof include a signal input terminal; first, second and third input circuits; a dimming control unit; a DC conversion unit; first and second switch circuits; and first, second and third light emitting elements. The second and third input circuits respectively include first and second detection units and first and second switch driving units. The DC conversion unit is connected to the first, second, and third input circuits and the dimming control unit. The first and second switch circuits are respectively connected to the DC conversion unit and the first and second switch driving units. The first light emitting device is connected to the DC conversion unit. The second and third light emitting devices are respectively connected to the first and second switch circuits, wherein the first, second and third light emitting devices are connected in parallel with each other.

Abstract: A bi-directional optical module includes a substrate, at least one first light-emitting diode (LED), and at least one second LED. The first LED is disposed on a surface of the substrate. The first LED has a first reflection surface and a first light-outlet surface that are opposite to each other, and the first light-outlet surface is away from the substrate relative to the first reflection surface. The second LED is disposed on the same surface of the substrate. The second LED has a second reflection surface and a second light-outlet surface that are opposite to each other, and the second light-outlet surface is close to the substrate relative to the second reflection surface. The substrate has at least one light-transparent area that is not occupied by the first LED and the second LED.

Abstract: A light emitting device includes several light emitting diode units connected in series with each other and a battery. The battery is coupled to a part of the light emitting diode units. When the light emitting diode units receive power supplied from an external power supply, the external power supply charges the battery through the part of the light emitting diode units, and drives the light emitting diode units, and when the light emitting diode units do not receive power supplied from the external power supply, the battery discharges to drive at least one of the light emitting diode units.

Abstract: An operating method of a display device includes: forming a plurality of capacitors between a plurality of monitor lines of a display device and a plurality of power lines of the display device via a plurality of light-emitting diodes; and performing touch sensing by using the capacitors. The light-emitting diodes are arranged in a matrix. A plurality of control switches of the display device is arranged in the matrix, and is electrically coupled to a plurality of first terminals of the light-emitting diodes, respectively. The monitor lines are electrically coupled to the first terminals of the light-emitting diodes, respectively. The power lines are electrically coupled to a plurality of second terminals of the light-emitting diodes, respectively.

Abstract: A power supplying device is provided to supply power for a plurality of loads. The power supplying device includes a detecting circuit, a controlling circuit, and a constant current circuit. The detecting circuit is electrically connected to a plurality of output terminals, and configured to detect whether the output terminals are electrically connected to the loads. In addition, the detecting circuit is configured to output a detecting signal according to the number of the loads which are connected to the output terminals. The controlling circuit is electrically connected to the detecting circuit, and configured to receive the detecting signal and output a controlling signal according to the detecting signal. The constant current circuit is electrically connected to the controlling circuit and the output terminals, and configured to drive the power supplying device to output the maximum current or part of the maximum current according to the controlling signal.

Abstract: A pixel voltage compensation circuit includes a first switch, a second switch, a driving switch, a third switch, a fourth switch, a first capacitor and a second capacitor. The first end of the first switch is coupled to a first node. The second end of the first switch is coupled to the data signal end. The first end of the second switch is coupled to the first node. The second end of the second switch is coupled to the anode end of the light emitting component. The first end of the driving switch is coupled to the high voltage source node. The first end of the third switch is coupled to the second end of the driving switch. The second end of the third switch is coupled to the light emitting component. The first end of the fourth switch is coupled to the control end of the driving switch. The second end of the fourth switch is coupled to the second end of the driving switch. The first capacitor is coupled to the control end of the driving switch and the first node.

Abstract: A pixel architecture includes a LED, a transistor, a data receiving unit, a compensation unit, a first switching unit, a second switching unit, and a capacitor. The transistor is configured to drive the LED. The first switching unit transmits a pixel data signal to the transistor according to a first scan signal. The compensation unit transmits a reference voltage. The first switching unit transmits a supply voltage to the transistor according to a second scan signal. The second switching unit transmits the pixel data signal to the transistor according to the second scan signal or a third scan signal. The capacitor is coupled to the transistor and the data receiving unit. The pixel data signal is transmitted to the capacitor at the time that the compensation unit transmit the reference voltage to the transistor.

Abstract: A pixel voltage compensation circuit includes a first switch, a second switch, a driving switch, a third switch, a fourth switch, a first capacitor and a second capacitor. The first end of the first switch is coupled to a first node. The second end of the first switch is coupled to the data signal end. The first end of the second switch is coupled to the first node. The second end of the second switch is coupled to the anode end of the light emitting component. The first end of the driving switch is coupled to the high voltage source node. The first end of the third switch is coupled to the second end of the driving switch. The second end of the third switch is coupled to the light emitting component. The first end of the fourth switch is coupled to the control end of the driving switch. The second end of the fourth switch is coupled to the second end of the driving switch. The first capacitor is coupled to the control end of the driving switch and the first node.

Abstract: A gate driving circuit includes plural-stage output circuits, an Nth stage output circuit of the plural-stage output circuits includes an Nth stage shift register and a mixer. The Nth stage shift register is configured to output an Nth pulse signal. The mixer is coupled to the Nth stage shift register and an (N+M)th stage shift register, for respectively outputting a first clock signal and a predetermined pulse signal during different periods according to the Nth pulse signal and an (N+M)th pulse signal of the (N+M)th stage shift register. Wherein pulse widths or phases of the first clock signal and the predetermined pulse signal are different, and N and M are positive integers.

Abstract: A pixel architecture includes a LED, a transistor, a data receiving unit, a compensation unit, a first switching unit, a second switching unit, and a capacitor. The transistor is configured to drive the LED. The first switching unit transmits a pixel data signal to the transistor according to a first scan signal. The compensation unit transmits a reference voltage. The first switching unit transmits a supply voltage to the transistor according to a second scan signal. The second switching unit transmits the pixel data signal to the transistor according to the second scan signal or a third scan signal. The capacitor is coupled to the transistor and the data receiving unit. The pixel data signal is transmitted to the capacitor at the time that the compensation unit transmit the reference voltage to the transistor.

Abstract: A display panel and a demultiplexer circuit are provided. The demultiplexer circuit includes a first to a Pth switch units. The first to the Pth switch units are coupled to a first to a Pth data lines of a display panel respectively and collectively receive a data voltage and turn on sequentially in sequence to provide the data voltage to corresponding data lines. A period of the first to the Pth switch units provide the data voltage to the first to the P data lines sequentially which is defined to a data transmission period. When the switch unit is turned on, N transistors are turned on simultaneously according to a plurality of control signals. When the switch unit is turned off, at least one of the N transistors is turned off according to a corresponding control signal.

Abstract: A display panel and a demultiplexer circuit are provided. The demultiplexer circuit includes a first to a Pth switch units. The first to the Pth switch units are coupled to a first to a Pth data lines of a display panel respectively and collectively receive a data voltage and turn on sequentially in sequence to provide the data voltage to corresponding data lines. A period of the first to the Pth switch units provide the data voltage to the first to the P data lines sequentially which is defined to a data transmission period. When the switch unit is turned on, N transistors are turned on simultaneously according to a plurality of control signals. When the switch unit is turned off, at least one of the N transistors is turned off according to a corresponding control signal.

Abstract: A torsional electrostatic combdrive with increased stiffness is disclosed. The torsional electrostatic combdrive includes a movable combteeth group, a stationary combteeth group, and a stationary link group. The stiffness of the torsional electrostatic combdrive is increased by coupling the stationary link group to the stationary combteeth group. Advantageously, the present invention promotes reduced gaps of engaging combteeth, increased snap-in voltage of combteeth, and reduced driving voltage of the combdrive.

Abstract: An organic electroluminescent device including an electrode line, a transparent impedance line, an insulating layer, a transparent electrode, an organic illumination layer and an electrode is provided. The electrode line is disposed on a substrate and next to a luminescent zone. The transparent impedance line is disposed in the luminescent zone on the substrate and electrically connected to the electrode line. The insulating layer completely covers the substrate and has a contact hole. The transparent electrode completely covers the luminescent zone and is disposed on the insulating layer. The transparent impedance line and the transparent electrode are electrically connected to each other through the contact hole. The organic illumination layer is disposed on the transparent electrode. The electrode is disposed on the organic illumination layer. Thus, the illumination of the organic electroluminescent device can be more uniform and the aperture ratio is increased.

Abstract: A gate driving circuit includes plural-stage output circuits, an Nth stage output circuit of the plural-stage output circuits includes an Nth stage shift register and a mixer. The Nth stage shift register is configured to output an Nth pulse signal. The mixer is coupled to the Nth stage shift register and an (N+M)th stage shift register, for respectively outputting a first clock signal and a predetermined pulse signal during different periods according to the Nth pulse signal and an (N+M)th pulse signal of the (N+M)th stage shift register. Wherein pulse widths or phases of the first clock signal and the predetermined pulse signal are different, and N and M are positive integers.

Abstract: A disk clamp for clamping an information storage disk to a rotating spindle in a disk drive includes a deflection portion that is annular and conical in shape, and which has a material thickness, an outer extent, and an inner extent. In certain embodiments, the inner extent is offset from the outer extent by a particular height measured parallel to an axis of rotation of the disk clamp. The disk clamp may further include a disk contact portion that is disposed radially outboard from the deflection portion, and which may include a curvature radially outboard of the outer extent that departs from a projection of the deflection portion, and a surface for contacting the information storage disk.

Abstract: A touch panel system includes a panel, first and second scanning mirrors located about first and second panel corners, a photodetector array along a first panel edge between the first and the second panel corners, and a stationary plane mirror along a second panel edge adjacent to the first panel edge. The first scanning mirror sweeps a light beam across the panel. The second mirror sweeps another light beam across the panel, a part of which reflects from the stationary plane mirror to back into the panel to sweep the panel from a different angle. The light beams, including the reflected part from the stationary plane mirror, strike objects on the panel and reflect towards the photodetector array. Angular positions of the first and the second scanning mirrors at the times the photodetector array detects the reflected light are correlated to object locations.

Abstract: An organic light emitting diode module is provided and includes a substrate, a first electrode located on the substrate, a pair of second electrodes located on the substrate, a light emitting element located on the substrate, a first copper foil electrically connected to the first electrode, a pair of second copper foils respectively electrically connected to the second electrodes, and a cross connection conductor electrically connected to the second copper foils. The second electrodes are in an arrangement opposite to one another. The light emitting element includes a first electrode layer electrically connected to the first electrode, a second electrode layer located between the second electrodes and electrically connected to the second electrodes, and an organic light emitting layer located between the first and second electrode layers.

Abstract: An organic light emitting diode module is provided and includes a substrate, a first electrode located on the substrate, a pair of second electrodes located on the substrate, a light emitting element located on the substrate, a first copper foil electrically connected to the first electrode, a pair of second copper foils respectively electrically connected to the second electrodes, and a cross connection conductor electrically connected to the second copper foils. The second electrodes are in an arrangement opposite to one another. The light emitting element includes a first electrode layer electrically connected to the first electrode, a second electrode layer located between the second electrodes and electrically connected to the second electrodes, and an organic light emitting layer located between the first and second electrode layers.