Daewoo Electronics Co., Ltd.

Tovis Co., Ltd.

Yang-Rae Kim

Jin-Woo Lee

Yong-Beom Kim

Chang-Woo Son

A curved-surface display panel fabrication method for fabricating a curved display panel having a desired curved shape using a flat display panel having a first substrate and a second substrate, includes: paring partially outer surfaces of the first substrate and the second substrate so as to reduce thicknesses thereof to a predetermined thickness; and attaching a reinforcing plate having the same shape with the desired curved shape and light transmitting characteristics to the display panel using an adhesive layer which is formed on at least a portion of edge portions of the display panel in a state that the pared flat display panel is bent to the desired curved shape.

Method for fabrication of curved-surface display panel

A handle assembly for a vacuum cleaner having an improved rotating connection portion which is capable of rotatably connecting a rigid wand with a flexible hose of the vacuum cleaner, which has a simple internal structure, and can be manufactured at a low cost. The rotating connection portion is disposed between a connector for separably receiving an end of a rigid wand and a flexible hose of the vacuum cleaner. A suction control switch is installed in one side of the rotating connection portion. A first annular groove is formed through an outer periphery of a distal end of the connector, and an elastic C-shaped ring is inserted into and fixed in the first annular groove. A second annular groove is formed through an inner periphery of a front end of the rotating connection portion. When the distal end is inserted into the front end, C-shaped ring is elastically inserted into the second annular groove. Alternately, a first groove is formed through an outer periphery of a distal end of the connector, and a second groove is formed through an inner periphery of a front end of the rotating connection portion. When the distal end is inserted into the front end, an elastic hook-shaped fixing member is inserted into the second locking groove and the first groove in due sequence.

Handle assembly for a vacuum cleaner having an improved rotating

An electric power switch for a vacuum cleaner which is capable of applying an electric voltage to a motor of the vacuum cleaner, capable of controlling a suction force which is established by the motor, is convenient to use, and can be manufactured at a low cost. An air suction passage for introducing an atmospheric air into a handle of the vacuum cleaner extends from a one side wall of a pipe hose toward a cover of the handle in order to communicate with the pipe hose. An operation knob is disposed in a space between the air suction passage and the cover and allows the air suction passage to selectively communicate with an air suction port, which is formed through the cover. A first supporting member for slideably supporting the operation knob extends from a bottom wall of the handle toward the cover up to an upper surface of the air suction passage. A plurality of locking grooves for setting a displacement of the operation knob are formed on an upper surface of the first supporting member. Locking grooves consist of a plurality of on-grooves and an off-groove which are arranged in a row. A second protrusion of the electric power switch selectively engages with the on-grooves and the off-groove in order to set the displacement of the operation knob.

Growing community of inventors

Incheon, South Korea

Yang-Rae Kim