Abstract: An LED driving device with an adjustable dimming depth is provided. The LED driving device includes an LED driver and a dimming depth control circuit. The LED driver includes a dimming control circuit and a driving circuit. The dimming control circuit generates a first pulse-width modulation (PWM) signal according to a first brightness indication signal. The driving circuit drives a first light source and adjusts a brightness of the first light source. A duty ratio of the first PWM signal and the first driving current have a first relationship therebetween. The dimming depth control circuit includes a first variable resistance circuit, and the first variable resistance circuit controls a magnitude of a first variable resistance between a first current sampling terminal and a ground terminal according to a first dimming depth control signal. The first relationship defines a first dimming depth that varies with the first variable resistance.

Abstract: A rollable display device is provided by the present disclosure. The rollable display device includes a substrate, a display element, a circuit element and a supporting layer. The substrate has a bending portion and a rollable portion. The display element is disposed on the rollable portion. The circuit element is disposed on the bending portion and electrically connected to the display element. The supporting layer is disposed under the substrate, wherein the rollable portion is attached by the supporting layer, and at least a part of the bending portion is not attached by the supporting layer.

Abstract: The present application discloses a semiconductor device and a method for fabricating the same. The semiconductor device includes an upper metal line and a lower metal line. The upper metal line is disposed over the lower metal line. At least one air gap is disposed between the upper metal line and the lower metal line.

Abstract: A vapor chamber includes a first cover, a second cover, a sealing ring and a sealing plug. The first cover has a thermal contact surface. The second cover is coupled with the first cover so as to form an interior space together, and the second cover has a vent hole. The sealing ring has a channel and at least one opening. The opening is in fluid communication with the channel, the sealing ring is clamped between the first cover and the second cover, and the vent hole is in fluid communication with the interior space via the channel and the opening. The vent hole and the channel are plugged with the sealing plug so as to seal the interior space.

Abstract: An electronic device includes a foldable structure, a first metal layer, a second metal layer and an insulating layer. The first metal layer is disposed on the foldable structure. The second metal layer is disposed on the foldable structure. The first metal layer is disposed between the second metal layer and the foldable structure. The insulating layer is disposed between the foldable structure and the first metal layer. In a side view, the first metal layer comprises a first spacing.

Abstract: An electronic device and a display panel are provided. The display panel includes a substrate, a light-emitting unit, a blocking structure and an encapsulation layer. The substrate has a through hole, a display area, and a non-display area disposed between the through hole and the display area. The light-emitting unit is arranged on the display area. The blocking structure is arranged on the non-display area. The encapsulation layer extends from the display area to the non-display area, and includes an organic layer and a first inorganic layer. A portion of the organic layer is disposed between the blocking structure and the first inorganic layer.

Abstract: A compact rotary algae biofilm reactor includes an algae biofilm module and a light guide module. The algae biofilm module includes a plurality of rotary members and a reaction tank. In the rotary member, an algae biofilm growth carrier and a power transmission belt are wound on a driving shaft and a driven shaft. A top end of the rotary member is fixed on a fixing frame while a bottom end thereof is submerged in the reaction tank. The light guide module includes a rotatable lens holder. The rotatable lens holder is fixedly provided with a linear Fresnel lens on an upper end thereof and is provided with a light guide plate on a lower end thereof. One side of the linear Fresnel lens is provided with a step motor configured to control the linear Fresnel lens to rotate with an angle of sunlight.

Abstract: The disclosure provides an electronic device including a frame and a transparent display device. The transparent display device is at least partially disposed in the frame, and includes a display panel and a driving element. The display panel includes a display area, a non-display area, and a plurality of pixels. The non-display area is adjacent to the display area. The plurality of pixels are disposed in the display area. A difference between a transmittance of the display area and a transmittance of the non-display area is less than 30% of the transmittance of the display area. The driving element is electrically connected to the plurality of the pixels, wherein when the transparent display device is moved to a state, the display panel is at least partially exposed outside the frame, and the driving element is hidden inside the frame.

Abstract: The present disclosure provides a wireless communication system including a first host computer, a communication dongle, a second host computer and an input device. The communication dongle is connected to the first host computer via a USB interface, connected to the second host computer via a Bluetooth interface, and connected to the input device via a RF interface. The first host computer has first application software for intercepting the operating signal(s) of the input device and transferring, via the communication dongle, to the second host computer to be executed thereby. The first application software also controls the first host computer to ignore the operating signal(s) during the operating signal(s) is being transferred to the second host computer.

Abstract: The disclosure provides a display device. The display device includes a display panel, a substrate and a plurality of vibrators. The substrate overlapped with the display panel. The plurality of vibrators overlapped with the display panel, wherein at least a part of the plurality of vibrators are arranged along a part of an edge of the substrate.

Abstract: The present disclosure provides an electronic device including a substrate, a circuit layer, an organic structure, and a sensing structure. The circuit layer is disposed on the substrate, and the circuit layer includes a switch. The organic structure is disposed on the substrate, and in a top view of the electronic device, the organic structure is adjacent to an edge of the substrate. The sensing structure is disposed on the circuit layer, and the sensing structure includes a sensing unit and a wire electrically connected to the sensing unit. The wire crosses over the organic structure and is electrically connected to the switch.

Abstract: A resonant converter switching between different operational state modes is provided. The resonant converter includes a first transistor, a second transistor, a control circuit, a resonant circuit, a transformer and an output stage circuit. A first terminal of the first transistor and a second terminal of the second transistor are connected to positive and negative terminals of an input voltage source, respectively. A first terminal of the second transistor is connected to a second terminal of the first transistor. The resonant circuit is connected to the second terminal of the first transistor and the transformer. The transformer is connected to a load through the output stage circuit. The control circuit modulates frequencies or duty cycles of conduction time control signals that are outputted to the first and second transistors to different values for switching the resonant converter between the operational state modes.

Abstract: The disclosure relates to an electronic device, including a flexible substrate, a driving structure layer, a display structure layer and a touch layer. The flexible substrate includes an area and a main area adjacent to the area. The driving structure layer is disposed on the flexible substrate. The driving structure layer includes an insulating structure, and the insulating structure includes a plurality of recesses. The display structure layer is disposed on the driving structure layer. The touch layer is disposed on the driving structure layer. A portion of the touch layer is disposed on the area of the flexible substrate. At least a part of the plurality of recesses is disposed on the area of the flexible substrate.

Abstract: A folding joint for frames and worktables composed of a control portion and a joint portion is provided. The control portion includes a base provided with a moveable slot and a shaft inserted through the moveable slot. Two ends of the shaft are connected with a moveable seat and a hook correspondingly. The hook is for control of a lock cylinder of the joint portion. The lock cylinder is mounted in an outer tube, inserted through an upper rotary arm, and mounted in a lower rotary arm to be locked. The upper and lower rotary arms are pivotally joined. Thus the hook is driven to make the lock cylinder release from the lower rotary arm and unlock when the moveable seat of the control portion is pulled and moved. Thereby the joint portion is moved freely and folded. The folding joint is convenient to operate and easy to control.

Abstract: An electronic device includes an insulating layer and a connective portion at least partially disposed in the insulating layer. The electronic device also includes a processing unit and an electronic element. The processing unit and the electronic element are respectively corresponding to opposite sides of the insulating layer. The processing unit and the electronic element are overlapped with the connective portion.

Abstract: The invention relates to a display device including a substrate, a plurality of pixels, a first insulating layer, a first conductive layer and a second conductive layer. The plurality of pixels are disposed on the substrate and comprise an active layer. The first insulating layer is disposed on the substrate and comprises a plurality of first recesses. The first conductive layer is disposed on the first insulating layer. The second conductive layer is electrically connected to the first conductive layer through one of the plurality of first recess. The active layer is disposed on the first insulating layer.

Abstract: A skate-used skate-tightening apparatus includes a plate, a buckle, a belt and two pivots. The plate includes a lug and two forks. The buckle includes a middle section formed between front and rear sections. A first pivot pivotally connects the rear section of the buckle to the lug. The belt includes a front section. A second pivot pivotally connects the front section of the belt to the middle section of the buckle. The buckle is in a tightening position when the second pivot is engaged with the forks.

Abstract: An electronic device includes: a substrate including a through hole; a connecting element disposed in the through hole; a first insulating layer disposed on the substrate and including a first via; a first conductive element disposed on the first insulating layer and electrically connected to the connecting element through the first via; a second conductive element disposed under the substrate and electrically connected to the connecting element; and a semiconductor disposed between the substrate and the first insulating layer.

Abstract: A resonant converter having a switch on-time control mechanism is provided. The resonant converter includes a primary-side switch circuit, a primary-side resonant circuit, a secondary-side switch circuit, a secondary-side resonant circuit, a transformer and a control circuit. In the resonant converter, the control circuit controls on-times and switching frequencies of the primary-side switch circuit and the secondary-side switch circuit to extend time within which power is transmitted from an input power source, the primary-side switch circuit, the primary-side resonant circuit and the transformer to the secondary-side resonant circuit, and stored in the secondary-side resonant circuit. As a result, the secondary-side resonant circuit is able to supply more power to a load.

Abstract: A semiconductor structure including a first epitaxial region, a second epitaxial region, a gate structure, a source region, a source electrode and a drain electrode. The second epitaxial region is disposed on the first epitaxial region. The gate structure is disposed on the second epitaxial region. The source region is disposed on the second epitaxial region and adjacent to the gate structure. The source electrode is disposed on the source region and is electrically connected to the source region. The drain electrode is disposed on the first epitaxial region and is electrically connected to the first epitaxial region. The first epitaxial region includes an impurity region on a side away from the second epitaxial region, and a concentration of impurities included in the impurity region increases with approaching the second epitaxial region.