Abstract: An organic electro-luminescence element and an organic electro-luminescence display are provided. The organic electro-luminescence display includes a substrate and a plurality of organic electro-luminescence elements disposed in array on the substrate. The organic electro-luminescence element includes a first electrode layer, an organic luminescent layer, a second transparent electrode layer, a first transparent filler layer, a second transparent filler layer and a semitransparent layer. Wherein, the organic luminescent layer is disposed on the first electrode layer, and the second transparent electrode layer is disposed on the organic luminescent layer. The first transparent filler layer and the second transparent filler layer are disposed on the second transparent electrode layer, and the thickness of the second transparent filler layer is larger than the thickness of the first transparent filler layer.

Abstract: An organic electro-luminescence display (OLED) is provided. The OLED comprises a substrate, a plurality of organic electro-luminescence devices, a first protective film, a second protective film, and a third protective film. The electro-luminescence devices are disposed over the substrate and comprise a plurality of first, second and third light organic electro-luminescence devices. The first, second and third light organic electro-luminescence devices are covered by the first, second and third protective films, respectively. By using different protective films corresponding to different light organic electro-luminescence devices, light emitted from each organic electro-luminescence device has the optimized intensity.

Abstract: A windshield wiper includes a wiper bridge pivotally connected with at least two claw units for mounting a flexor thereto for engaging a wiping blade. However, the flexor and the two claw units define a receiving housing therebetween for storing an additional wiping blade for selectively replacing the wiping blade. Whereby, the user may simply pull out the additional wiping blade and replace the wiping blade by engaging the additional wiping blade with an holding groove of the flexor, and that the replaced wiping blade can also be stored in the receiving housing.

Abstract: New purine retinoid compounds according to the formula: ##STR1## wherein R is a purine derivative, and pharmaceutical compositions thereof, are provided which exhibit cancer-inhibiting activity.

Abstract: A retractrable wheel assembly for luggage cases includes an outer U-shaped member being rectangular in shape and having an open vertical side secured to a L-shaped bracket, an inner U-shaped member slidably fitted inside the outer U-shaped member, two springs connected between hooks of the outer U-shaped member and the inner U-shaped member, a wheel pivotally connected to a bottom of the inner U-shaped member, a positioner fixedly mounted within the inner U-shaped member, a V-shaped torsion spring having an intermediate portion fixedly mounted inside the positioner and two ends provided with two blocks configured to extend through the the openings of the positioner, the inner U-shaped member and the outer U-shaped member, and a string having an upper end extending out of the outer U-shaped member and a lower end engaged with the two ends of the V-shaped torsion spring.

Abstract: A universal wiper arm connector includes a generally inverted U-shaped outer seat having a central threaded hole at a top thereof and two downwardly depending arms each having an inwardly extending toothed portion. A generally inverted M-shaped inner seat is adapted to fit into the outer seat and has a recessed portion with a curved bottom and two downwardly depending arms formed at a lower edge with teeth adapted to engage with the toothed portion of the outer seat. A locking bolt having external threads is engageable with the threaded hole of the outer seat, whereby the connector can be engaged with wiper arms of different sizes.

Abstract: A universal wiper arm connector including a U-shaped body having an upper arm formed with two flanges, two shoulders, a first and second tongues having a protuberance thereon, a lower arm provided with a third tongue having a protuberance thereon, and an axle perpendicular to the U-shaped body, whereby the universal wiper arm connector can be slid into a U-shaped end of wiper arms of different sizes.

Abstract: A wiper arm connector including a first jaw having a cavity at the inner side formed with a plurality of teeth a second jaw having a cavity at the inner side formed with a plurality of teeth, a first packing having an opening at a central portion and a toothed portion at an upper portion, a second packing having an opening at a central portion and a toothed portion at an upper portion, and a locking pin inserted through the first and second jaws to engage with a nut, such that the connector can be conveniently connected with wiper arm of different sizes and shapes.

Abstract: A rubber blade assembly for a windshield wiper, including a casing, two master blade holders pivoted to the casing to hold two assistant blade holders and a rubber blade, wherein the casing has a cowling which protects the rubber blade against the radiation of sunlight and gives a downward pressure to the rubber blade against the windshield upon the bearing of the force of thy wind, an elongated mounting slot longitudinally disposed at the cowling in the middle for mounting a connector, which connects the casing to a wiper drive arm, a plurality of circular recesses at two opposite ends of the cowling for bearing the force of thy wind, and a transverse pivot hole in the middle below the cowling and connected between two opposite pivots holes of the connector by pivot means.

Abstract: A windshield wiper including an outer elongated frame having a top and two vertical sides, a pair of extension arms being a generally inverted U-shaped member having two parallel depending legs each formed with a plurality of holes, the arms are slidably received in opposite ends of the outer frame, a pair of angled positioners each having an upper plate and a vertical plate, the positioners for fixing the arms with respect to the outer frame, a pair of intermediate elongated frames each provided at an intermediate portion thereof with a first axle engaged with the extension arm, a pair of inner elongated frames each provided at an intermediate portion thereof with a second axle engaged with the intermediate elongated frame, and a wiper blade having two opposite grooves engaged with the intermediate elongated frames and the inner elongated frames, whereby the windshield wiper can be adjusted in length by manipulation of said positioner.

Abstract: In a pulse rate modulation type driver device for driving a piezoelectric crystal so as to produce sound, a digitized sound signal input having a sign bit and a plurality of magnitude bits is firstly provided. A driving signal is then generated by varying the pulse density per unit time of a clock pulse according to the value of the magnitude bits. The driving signal is more dense when the value of the magnitude bits is higher and is less dense when the value of the magnitude bits is lower. The driving signal is then applied to the piezoelectric crystal so as to permit the piezoelectric crystal to undergo mechanical strain and thereby produce sound. The driving signal is applied to either a positive terminal or a negative terminal of the piezoelectric crystal depending upon the logic state of the sign bit of the digitized sound signal input.

Abstract: A retaining clip is used in combination with a wiper comprising a flexible wiper blade having a longitudinally extending headed rib and a resilient backing rail formed with a longitudinally extending and forwardly open narrow-neck slot in which the rib is received and captured, with an aperture opening at a back face of the rail spaced longitudinally from an end of the rail, and with a pair of laterally oppositely open grooves and having a back face directed away from the blade. A yoke assembly has a plurality of longitudinally spaced claws engaging over the rail and into the grooves thereof. The clip is unitarily formed with an end wall normally lying against the end of the rail blocking the slot thereof, a pair of parallel sides extending longitudinally from the end wall and normally lying over the grooves adjacent the end of the rail, and a pair of parallel arms extending from the sides and normally lying flat on the back face of the rail. These arms normally lie under a respective claw.