Abstract: A circuit includes a first transistor, a second transistor, a third transistor and a fourth transistor. The first transistor has a first end and a second end. The second transistor has a first end and a second end, wherein the first end of the second transistor is coupled to the first end of the first transistor. The third transistor has a first end and a second end, wherein the second end of the third transistor is coupled to the second end of the second transistor. The fourth transistor has a first end coupled to the second end of the first transistor. The fourth transistor has a bottom gate and an oxide semiconductor layer, and the second transistor has a top gate and a silicon semiconductor layer.

Abstract: An electronic device is provided, including a main body and a camera module. The camera module has a frame, a lens unit disposed in the frame, a guiding member, and a hinge. The guiding member is affixed to the main body and has a rail and a spring sheet. The hinge pivotally connects to the frame and the guiding member. When the camera module is in the retracted position, the camera module is hidden in a recess of the main body. When the camera module slides out of the recess from the retracted position along the rail into the operational position, the spring sheet is pressed by the hinge to increase the friction between the hinge and the guiding member.

Abstract: A display device includes: a substrate having display and non-display areas; a first conductive layer including first and second sub-conductive lines; a second conductive layer including third and fourth sub-conductive lines, wherein, in the display area, the first sub-conductive line and the third sub-conductive lines cross from a top view; and a third conductive layer including third conductive lines and corresponding to the non-display area; wherein, corresponding to the non-display area, a portion of a projection of the one of the third conductive lines is overlapped with a portion of a projection of the second sub-conductive line on the substrate, and another portion of the projection of the one of the third conductive lines is overlapped with a portion of a projection of the fourth sub-conductive line on the substrate.

Abstract: A portable electronic device capable of signal or power transmission and standing on a surface in a vertical or near-vertical orientation at the same time is provided in the present invention. The portable electronic device includes a flat body having a front surface, a rear surface opposite to the front surface, and a through hole passing through the flat body, and the through hole extending from the front surface to the rear surface. Herein the through hole is adapted to couple with an external docking element for signal or power transmission. Thus, the portable electronic device is capable of signal or power transmission and standing on the supporting surface at the same time via the external docking element coupling with the through hole.

Abstract: A docking station, an electronic apparatus and a portable device are provided. The electronic apparatus comprises a portable device having a display surface and a docking station having a base and a connecting module. The base has a supporting surface. The portable device is adapted to be attached to the supporting surface. The connecting module has a first pivot and a second pivot. The first pivot is connected and pivoted to the base, and the second pivot is detachably pivoted to the portable device, such that the portable device is adapted to rotate relatively to the docking station.

Abstract: An electronic apparatus including a portable device and a docking station is provided. The portable device has a display surface and the first restricting element. The docking station includes a base having a supporting surface and the second restricting element disposed on the supporting surface. The first restricting element is latched to the second restricting element when the portable device is attached to the supporting surface. Besides, the portable device is adapted to stand on the base by restricting the relative position of the portable device and the second restricting element.

Abstract: An electronic apparatus including a portable device and a docking station is provided. The portable device has a display surface and a first restricting element. The docking station includes a base and a frame. The base has a supporting surface, wherein the portable device is adapted to be placed on the supporting surface. The frame is disposed around the base and has a second restricting element, wherein the frame is adapted to slide related to the base to drive the second restricting element to be aligned to the first restricting element of the portable device placed on the supporting surface, such that the portable device is fixed to the base by means of a magnetic attraction force between the first restricting element and the second restricting element.

Abstract: A portable electronic device capable of signal or power transmission and standing on a surface in a vertical or near-vertical orientation at the same time is provided in the present invention. The portable electronic device includes a flat body having a front surface, a rear surface opposite to the front surface, and a through hole passing through the flat body, and the through hole extending from the front surface to the rear surface. Herein the through hole is adapted to couple with an external docking element for signal or power transmission. Thus, the portable electronic device is capable of signal or power transmission and standing on the supporting surface at the same time via the external docking element coupling with the through hole.