Abstract:
An image adjustment method for displays is disclosed. Firstly, scan images on a display to get a coordinate of non-uniform brightness. Then the coordinate of non-uniform brightness is measured to obtain a chromatic value and a compensation value list is established according to a threshold value. Next brightness of images on the display is adjusted according to the coordinate of non-uniform brightness and the compensation value list so as to achieve uniform brightness of images, reduced labor cost and higher line speed.
Abstract:
The present invention provides a spacer placed between a top substrate and a bottom substrate for a field emission display device. The spacer comprises at least two insulating layers for electrical insulation; and at least one metal layer sandwiched between the insulating layers, wherein the metal layer has plural apertures for electrons passing therethrough and disturbing pathway of electrons as the electrons impact the apertures.
Abstract:
The bicycle stand includes a first rod, a second rod, and a pivot structure. The first rod has a first end, a second end, and a first pivot portion between the first end and the second end. The second rod has a third end, a fourth end, and a second pivot portion between the third end and the fourth end. The pivot structure is pivotally connected to the first pivot portion and the second pivot portion so that the first rod is pivotally connected with the second rod and is able to pivot between a folding position and an opening position. The first rod and the second rod are X-shaped when the first rod and the second rod are at the opening position.
Abstract:
An alternator includes a stator assembly and a rotor assembly. The rotor assembly includes a rotor core having a first core portion and a second core portion. The rotor core is processed by cementation, so that the first core portion has carbon content that gradually decreases from the outer surface toward the central line of the rotor core till reaching a predetermined carbon content. The second core portion has carbon content lower than that of the first core portion. With these arrangements, the alternator can reduce turn-on speed and increase outputs. A method of manufacturing the non-homogenous rotor core of the alternator is also provided.
Abstract:
A clamping mechanism automatically adaptable to change of thickness of printed circuit board includes: a frame body having two parallel rail seats; two clamping rail members respectively mounted on the rail seats for clamping a printed circuit board, each clamping rail member including a first clamping rail and a second clamping rail spaced from each other by a clamping gap; and two adjustment units for adjusting the clamping gap of the clamping rail members. Each the adjustment unit includes: a support section mounted on the frame body to provide a support face; a connection section, one end of the connection section being affixed to the first clamping rail, the other end of the connection section being positioned above the support face; and a floating section positioned between the connection section and the support section and supported on the support face to apply a resilient support force to the connection section.
Abstract:
An alternator includes a stator assembly and a rotor assembly. The rotor assembly includes a rotor core having a first core portion and a second core portion. The rotor core is processed by cementation, so that the first core portion has carbon content that gradually decreases from the outer surface toward the central line of the rotor core till reaching a predetermined carbon content. The second core portion has carbon content lower than that of the first core portion. With these arrangements, the alternator can reduce turn-on speed and increase outputs. A method of manufacturing the non-homogenous rotor core of the alternator is also provided.
Abstract:
The present invention discloses a piston device which is disposed in a cylinder. The cylinder has a chamber including a bore and an inner wall. The piston device comprises a piston body and at least an annular ring. The piston body has a top side and a bottom side, the diameter of the piston body is smaller than the bore, and either one of the top side or the bottom side has a convex portion. The annular ring is clamped to the top side or the bottom side by engaging said convex portion, and the annular ring has a diameter slightly larger than the diameter of the piston body. While said piston therein moves reciprocally at which the axial direction of the cylinder, the annular ring slides against the inner wall but the piston body has no contact with said inner wall.
Abstract:
A gantry with a buffering structure cooperates with a base and comprises a gantry and a buffering structure. Both ends of the gantry are provided with a connecting portion, respectively. One of the connecting portions is fixed on the base, and the buffering structure is disposed between the other connecting portion of the gantry and the base. Thereby, when the gantry moves along with the base, the gantry can absorb the inertial strength caused by displacement and the deformation caused by thermal expansion and contraction by the flexibility of the buffering structure.
Abstract:
A field emission display (FED) device, which includes a top substrate, a bottom substrate, and an intermediate plate set located between the top substrate and the bottom substrate. The top substrate has a phosphor layer and an anode. The bottom substrate has a cathode, and an electron emitter. The intermediate plate set has a metal plate with multiple holes, an insulating layer with multiple holes, and a gate layer. In the FED device, the insulating layer is located between the gate layer and the metal plate for electrical insulation, and the gate layer has a gap from the bottom substrate. Thus, the processing steps prepared for the bottom substrate can be reduced to thereby prevent the electron emitters from damage. The number of electrons bombarding on the phosphor layer is effectively increased to thereby increase the brightness and color contrast on pixels.
Abstract:
A chain guiding mechanism for a linear motion machine comprises a support member and a linear motion device. The support member cooperates with a chain and the linear motion machine to move, respectively. The support member is disposed on the linear motion device for carrying a part of the weight of the chain, so as to prevent the chain from vibration, thus avoiding influencing the displacement precision of the linear motion machine.