Abstract:
A cold-cathode fluorescent lamp the overall size of which is small, which has an improved heat-dissipation characteristic, and the lead wire of which hardly break. The cold-cathode florescent lamp (20) comprises electrodes (28, 30) composed of electrode body (28a, 30a) and lead wires (28b, 30b), a glass bulb (21) having ends into which the lead wires are sealed, and heat dissipaters (32, 34) provided at portions of the lead wires which is outside the glass bulb. The portion of the heat-dissipaters surrounding the lead wires are in contact with the end faces (21c, 21d) of the glass bulb.
Abstract:
A capacitively coupled fluorescent lamp package having a capacitively coupled fluorescent lamp having cylindrical ceramic tubes is disclosed. The lamp package further includes an electronic driver or inverter circuit for driving the lamp and supply nodes for receiving a supply voltage. The inverter circuit is a conventional inverter circuit, such as, for example, current-fed push-pull, voltage-fed push-pull, active clamped Flyback, and voltage-fed half-bridge inverter circuits, used in conventional CCFLs. A ballast circuit may be connected to the inverter circuit for properly ballasting the lamp.
Abstract:
The invention relates to a meander-shaped low-pressure mercury discharge lamp with cold electrodes (7, 8), in particular for use in an illumination panel for a liquid crystal display, in which lamp the geometry of the tubular lamp vessel (1) bent into a meander shape is so chosen, for obtaining a good homogeneity of the luminance and a high luminous efficacy, that the length of the discharge path is between 250 and 1000 times the internal diameter of the lamp vessel (1). The internal diameter of the lamp vessel (1) preferably has a value of between 2.0 and 3.5 mm.
Abstract:
PROBLEM TO BE SOLVED: To provide a liquid crystal display device capable of improving luminance as a backlight of a liquid crystal display panel by increasing the luminous flux of a cold cathode fluorescent tube and its manufacturing method. SOLUTION: The cold cathode fluorescent tube CCFL applied on a backlight installed at the rear face of a liquid crystal display panel of a liquid crystal display device is provided with a translucent glass tube VAL in which rare gas and mercury are sealed, a pair of cold cathodes ELE which are sealed and arranged oppositely at both ends of this glass tube VAL, a power lead-in wire LE of which one end is connected to the cold cathode ELE and the other end is lead out to the outside of the glass tube VAL by being airtightly sealed, a phosphor film FLU which is formed on the inner periphery face of the glass tube VAL. The phosphor film FLU is formed by sucking and applying a phosphor suspension which is prepared by mixing and re-agitating the phosphor to a suspension in which a mixed solvent of a butyl acetate and nitro-cellose is strongly agitated. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a cold cathode fluorescent lamp capable of achieving a significant reduction in impurity gases/particles in a tube, improvements in emission efficiency and operation efficiency, and a long life due to a reduction in operating voltage. SOLUTION: This cold cathode fluorescent lamp comprises a light transmissive tube 200 and at least one cup-shaped adsorptive structure 202. The light transmissive tube 200 is sealed and filled with a gas that emits light through excitation by application of a voltage. The adsorptive structure 202 is disposed at an end of the tube 200, and comprises a supporting member 204 having an opening 214, and an adsorptive material layer 206 that fills the opening 214. COPYRIGHT: (C)2005,JPO&NCIPI