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Huo-Lu Tsai

Huo-Lu Tsai, Ta Ya Shiang TW

Patent application numberDescriptionPublished
20090256726ILLUMINATED KEYBOARD WITH A LIGHT GUIDE PLATE - An illuminated keyboard with a light guide plate of the present invention includes a key module and a luminous module located under the key module. The luminous module includes a transparent light guide plate, a plurality of illuminants, and a light reflection plate located under the light guide plate. The light guide plate is provided with a plurality of light input units which are sections formed at the light guide plate. The illuminants are located corresponding to the light input units, and the light emitted by the illuminants is transmitted into the light guide plate via the sections. The light guide plate is provided with a plurality of light output units to provide the light to the key module. Each light output unit is provided with a plurality of light output members. The quantity of the light output members of each light output unit located at the same side of the illuminants increases with the increasing distance between the light output units and the illuminants. The light emitted from the illuminants to the light input units of the light guide plate, transmitted through the light guide plate and refracted or scattered at the light output units. The quantity and structure of the light output members of each light output unit and the position of the light output units can be adjusted according to the requirements, thereby providing even and bright light to the key module.10-15-2009
20100053870COMPUTER KEYBOARD WITH TRANSPARENT COVERS FOR PROTECTING KEY CHARACTERS - A computer keyboard in one embodiment includes a plurality of keys, each of the keys including a suspension structure and a key body supported by the suspension structure, the key body comprising a color body member, a transparent colorless protective cover formed on the body member, and at least one character formed on the body member by laser engraving through the protective cover onto the body member wherein the body member has a flat top.03-04-2010
20100253551KEYBOARD WITH PAINT SCHEME - A keyboard includes a seat; a plurality of keys positioned on the seat, the key comprising a vertically depressible bridge and a cap releasably fastened on the bridge; a plurality of primers each formed on the cap; a plurality of paint layers each coated on the primer wherein each of a predetermined number of the paint layers has a piece of a paint scheme selected from a computer; and a plurality of character layers each having a unique character set coated on the paint layer. The keyboard is aesthetic. Further, such type of keyboard featured a specially designed paint scheme on exterior is very competitive in the market.10-07-2010
20100321298KEYBOARD AND TOUCHPAD COMBINATION - A keyboard and touchpad combination for a computer in one embodiment includes a hollow frame; a touchpad fitted in frame; a character membrane comprising printed characters; a rubber keyboard comprising raised top keys and guide stems each extending downward from the key; a brace board for positioning the rubber keyboard and comprising holes for loosely receiving the keys; a membrane circuit board comprising dome switches each corresponding to the guide stem thereabove, each dome switch including a conductive contact on a top of its inner surface, and pairs of conductive lines, each pair of the conductive lines being directly below the conductive contact; and a bottom plate. The keyboard and touchpad combination can be operated as a keyboard or a touchpad.12-23-2010

Huo-Lu Tsai, Ta Ya Shiang, Taichung Hsien TW

Patent application numberDescriptionPublished
20100000426APPARATUS FOR PRINTING CHARACTERS ON A COMPUTER KEYBOARD AND METHOD THEREOF - Apparatus and method for printing characters on a computer keyboard are provided. The apparatus includes a padding film disposed above a keyboard blank having a plurality of keys, the padding film including a plurality of different characters; and a printing press disposed above the padding film and comprising a plurality of projecting typing heads formed on a bottom, wherein the printing press, the padding film, and the keyboard blank are aligned vertically; and whereby lowering the printing press to push the padding film until the padding film contacts the keyboard blank, and causing the printing press to press the padding film so as to print the characters on the keys by heating, and lifting the printing press will produce the finished computer keyboard.01-07-2010

Huo-Lu Tsai, Taichung Hsien TW

Patent application numberDescriptionPublished
20080231613DIGITIZER PEN CAPABLE OF UTILIZING SOLAR POWER - A digitizer pen includes a solar cell for converting solar power into electrical energy, an energy storing circuit connected electrically to the solar cell for storing electrical energy therefrom, a magnetic field generating circuit for receiving electrical energy from one of the solar cell and the energy storing circuit, and a pen housing unit for receiving the solar cell, the energy storing circuit and the magnetic field generating circuit.09-25-2008
20090040185ANTENNA MODULE FOR A DISPLAY DEVICE THAT INCORPORATES AN ELECTROMAGNETIC DIGITIZING TABLET FUNCTION - An antenna module includes a dielectric substrate, x-axis and y-axis antennas, a plurality of contact units, and an interconnecting unit. The dielectric substrate has opposite first and second surfaces. Each of the x-axis and y-axis antennas is formed an a respective one of the first and second surfaces of the dielectric substrate. Each of the contact units is formed on the first surface of the dielectric substrate. The interconnecting unit interconnects the contact units.02-12-2009

Patent applications by Huo-Lu Tsai, Taichung Hsien TW

Huo-Lu Tsai, Taya Shiang TW

Patent application numberDescriptionPublished
20090021400MULTICOLOR TRANSPARENT COMPUTER KEYBOARD - A multicolor transparent computer keyboard for operating a computer in a dark environment includes transparent keypads each on a top including spaced transparent color layers occupying four corners and being different in color from each other, an opaque layer on the color layers and having portions overlapped with the color layers being removed, and characters printed on the opaque layer; bridges pivotably interconnecting the key caps and an underlying transparent frame plate; a PCB under the frame plate; and a luminescence panel under the PCB and including cells each below the key cap, each cell including regions of different colors and adapted to electrically activate to upward emit light which is adapted to show multi-color when passing a gap between the color layers and show a backlit color when passing one of the color layers. The backlit color of each color layer is different from that of another color layer.01-22-2009