Harvatek Corporation

Chia-Pin Chang

Tsung-Kan Cheng

Feng-Hui Chuang

Yen-Chun Wang

Yung-Pao Tang

Shou-Li Chang

Chia-Chin Chen

A movable display device includes a carrying module, a lifting module, a frame module and a display module. The carrying module includes a carrier unit, a base unit disposed on the carrier unit, and a plurality of positioning units disposed on the carrier unit. The lifting module is disposed on the base unit. The frame module includes a primary frame unit movably connected to the positioning units and a plurality of secondary frame units movably connected to the primary frame unit. The primary frame unit has a connecting portion connected to the lifting module. The secondary frame units are respectively located at two sides of the primary frame unit. The display module includes a primary display unit disposed on the primary frame unit and a plurality of secondary display units respectively disposed on the secondary frame units.

Movable display device

A white light-emitting diode (LED) package containing plural blue LED chips is disclosed. The white LED package includes a transparent plate, plural blue LED chips bonded on a front surface of the transparent plate, a front fluorescent glue layer covering the plural blue LED chips, and a rear transparent glue layer covering a rear surface of the transparent plate and located at a position aligned with the front fluorescent glue layer. The edge of the rear transparent glue layer has an inclined lateral surface or a curved inclined lateral surface. Therefore, the light can be extracted from both front and rear surfaces, and the light extraction efficiency of the rear surface of the transparent plate is increased. The rear transparent glue layer can be replaced by a rear fluorescent glue layer to reduce the color temperature difference between the lights extracted from the front surface and the rear surface.

White light emitting diodes package containing plural blue light-emitting diodes

Growing community of inventors

Hsinchu, Taiwan

Chia-Pin Chang