Abstract: A display may have an array of pixels. Display driver circuitry may supply data and control signals to the pixels. Each pixel may have seven transistors, a capacitor, and a light-emitting diode such as an organic light-emitting diode. The seven transistors may receive control signals using horizontal control lines. Each pixel may have first and second emission enable transistors that are coupled in series with a drive transistor and the light-emitting diode of that pixel. The first and second emission enable transistors may be coupled to a common control line or may be separately controlled so that on-bias stress can be effectively applied to the drive transistor. The display driver circuitry may have gate driver circuits that provide different gate line signals to different rows of pixels within the display. Different rows may also have different gate driver strengths and different supplemental gate line loading structures.

Abstract: A bicycle shock-absorbing apparatus comprises an inner tube, a valve device, and an outer tube. The inner tube is inserted into the outer tube, with the valve device disposed at the bottom thereof to control the flow of damping oil between the tubes: upward therethrough into the inner tube when the bicycle receives a shock, and downward therethrough into the outer tube when the bicycle is unstressed.

Abstract: A bicycle shock-absorbing apparatus comprises an inner tube and an outer tube. The inner tube is inserted into the outer tube. An upper spring socket and a lower spring socket are disposed in the inner tube and the outer tube separately. A compression spring is disposed between the spring sockets, oil being filled between the spring sockets. The inner tube is fixedly attached to the upper spring socket and corelatedly actuated with the spring to achieve a shock absorbing effect. A hole is formed in the center of the upper spring socket, enabling oil to flow therethrough. An oil seal is disposed inside the top of the outer tube to prevent oil spillage. An air inlet socket is attached inside an upper wall of the inner tube, while an air inlet valve is received by the air inlet socket to enable inflation of the inner tube. The air, in cooperation with the spring and the oil, provide elasticity for the bicycle shock-absorbing apparatus.

Abstract: A double-rod hydraulic cylinder for an exerciser including a casing, a piston assembly and a universal joint. The piston assembly includes a piston head and two piston rods. Two bearings are respectively fixed to an inner wall of each closed end of the casing. A disk-type spring washer, a washer, an oil seal and a disk-like fixing gasket are arranged respectively in series from each bearing to said piston head. Each of the bearings, the disk-like fixing gaskets, the disk-type spring washers, the washers and the oil seals have a central hole in alignment for the piston rods to pass through. The washers, the oil seals and the gaskets are axially slidable a short distance within the casing. The two disk-like fixing gaskets and the piston head together define a first chamber and a second chamber. Each disk-type spring washer is compressed when the piston assembly axially moves in either direction. The hydraulic cylinder further includes an oil pipe.