Backlight device and liquid crystal display device incorporating the same

A kind of equipment and backlight technology, applied in the direction of lighting and heating equipment, optics, light guide, etc., can solve problems such as difficult to reduce the thickness of backlight equipment, increase product cost, poor connection, etc., to prevent corona or arc discharge, and eliminate disconnection , the effect of improving reliability
CN1928665AInactive Publication Date: 2007-03-14MINEBEA CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
MINEBEA CO LTD
Publication Date
2007-03-14
Estimated Expiration
Not applicable · inactive patent

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Abstract

A backlight device includes a frame, at least one lamp unit each comprising a transformer and a discharge lamp structured into an integral and rigid unit, and also includes a circuit board for lighting the discharge lamp, which is disposed at the back surface of the frame and at which the transformer is mounted at. The transformer of the lamp unit includes: two terminal blocks having terminal pins; a bobbin having a primary winding and first and second secondary windings wound around an outer circumference of the winding core member; a magnetic core; and two lamp connecting terminals attached respectively to the terminal blocks and connected respectively to the first and second secondary windings, wherein the discharge lamp is attached to the transformer with electrodes of the discharge lamp connected directly to the lamp connecting terminals of the transformer, thus forming the lamp unit into an integral structure.
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Description

technical field

[0001] The present invention relates to a backlight device, and also to a liquid crystal display device incorporating the backlight device, and particularly to a backlight device in which a lamp as a light source is directly attached to a transformer, and to a backlight device incorporating such a backlight device LCD display device. Background technique

[0002] A liquid crystal display (LCD) used as a display device of a liquid crystal monitor, a liquid crystal television, etc. does not emit light by itself, and thus requires an illumination system such as a backlight device. Among these backlight devices, there is an edge light type in which a cold-cathode lamp as a light source is arranged on one side of a light-conductive plate so that light emitted from the lamp is introduced into the light-conductive plate from the side and passed from the light-conductive plate. One main surface of the light diffusion plate is left, thereby illuminating the light dif...

Claims

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