摘要:
The orientation of fluorescent lamps is detected in a manufacturing method for a direct backlight unit that alternates orientations of adjacent fluorescent lamps. In a preparation step of the manufacturing method for the backlight unit of the present invention, a plurality of fluorescent lamps are prepared. In each of the fluorescent lamps, a length (a1) from a first sealed portion of a glass bulb (26) to a non-phosphor layer (32) area is shorter than a length (a2) from a second sealed portion to a non-phosphor layer (32) area (a1
摘要:
The orientation of fluorescent lamps is detected in a manufacturing method for a direct backlight unit that alternates orientations of adjacent fluorescent lamps. In a preparation step of the manufacturing method for the backlight unit of the present invention, a plurality of fluorescent lamps are prepared. In each of the fluorescent lamps, a length (a1) from a first sealed portion of a glass bulb (26) to a non-phosphor layer (32) area is shorter than a length (a2) from a second sealed portion to a non-phosphor layer (32) area (a1
摘要:
A discharge lamp includes a glass bulb and a pair of electrodes provided at both ends of the glass bulb. At least one of the electrodes is an external electrode formed on an outer surface of the glass bulb as a thin layer whose maximum thickness is 70 μm or less, and an end portion of the external electrode becomes smaller in thickness towards an end of the external electrode.
摘要:
A discharge lamp includes a glass bulb and a pair of electrodes provided at both ends of the glass bulb. At least one of the electrodes is an external electrode formed on an outer surface of the glass bulb as a thin layer whose maximum thickness is 70 μm or less, and an end portion of the external electrode becomes smaller in thickness towards an end of the external electrode.
摘要:
A backlight unit has an external electrode fluorescent lamp in an housing. The external electrode fluorescent lamp includes a glass bulb having a discharge space inside, and electrodes around both ends of the glass bulb. A protective layer and a phosphor layer are formed on an internal surface of the glass bulb in this order. The glass bulb is made of soda glass, and sodium oxide precipitated from this soda glass appears on part of the internal surface of the glass bulb where the protective layer is not formed, so as to be exposed to the discharge space.
摘要:
A backlight unit has an external electrode fluorescent lamp in a housing. The external electrode fluorescent lamp includes a glass bulb having a discharge space inside, and electrodes around both ends of the glass bulb. A protective layer and a phosphor layer are formed on an internal surface of the glass bulb in this order. The glass bulb is made of soda glass, and sodium oxide precipitated from this soda glass appears on part of the internal surface of the glass bulb where the protective layer is not formed, so as to be exposed to the discharge space.
摘要:
A backlight unit has an external electrode fluorescent lamp in an housing. The external electrode fluorescent lamp includes a glass bulb having a discharge space inside, and electrodes around both ends of the glass bulb. A protective layer and a phosphor layer are formed on an internal surface of the glass bulb in this order. The glass bulb is made of soda glass, and sodium oxide precipitated from this soda glass appears on part of the internal surface of the glass bulb where the protective layer is not formed, so as to be exposed to the discharge space.
摘要:
A fluorescent lamp including a glass bulb that is in a shape of a tube. External electrodes are formed as conductive layers each of which covers an outer surface of the glass bulb at an end thereof. Metal members in a shape of a cap are respectively connected to the external electrodes by covering at least part of the external electrodes. The metal members are formed such that rims of the metal members recede from a center of the glass bulb in the tube axis direction a distance L than rims of the external electrodes.
摘要:
The present invention is a backlight unit 1 in which multiple substantially U-shaped lamps, to each of whose respective both end portions 11a and 11b an electrode 12 is attached, are disposed in parallel to one another in an envelope 20 in a manner that the end portions 11a and 11b of each lamp 10 face opposite to the end portions 11a and 11b of the adjacent lamp 10 and are positioned closer to a side wall 42/44 of the envelope 20 than a bent portion 13 of the adjacent lamp 10 is. Herewith, it is possible to offer the backlight unit 1 realizing reduced unevenness in luminance and requiring less power consumption.
摘要:
A fluorescent lamp including a glass bulb that is in a shape of a tube. External electrodes are formed as conductive layers each of which covers an outer surface of the glass bulb at an end thereof. Metal members in a shape of a cap are respectively connected to the external electrodes by covering at least part of the external electrodes. The metal members are formed such that rims of the metal members recede from a center of the glass bulb in the tube axis direction a distance L than rims of the external electrodes.