US 7,549,768 B2
Display device, including discharge tube temperature control member
Akio Sotokawa, Kawasaki (Japan); and Seiji Hachisuka, Kawasaki (Japan)
Assigned to Fujitsu Limited, Kawasaki (Japan)
Filed on Jun. 12, 2007, as Appl. No. 11/808,637.
Application 11/808637 is a division of application No. 11/315232, filed on Dec. 23, 2005, granted, now 7,290,901.
Application 11/315232 is a continuation of application No. 10/663708.
Application 10/663708 is a continuation of application No. PCT/JP02/02622, filed on Mar. 19, 2002, granted, now 7,070,291, filed on Jul. 04, 2006.
Claims priority of application No. 2001-078546 (JP), filed on Mar. 19, 2001.
Prior Publication US 2007/0247849 A1, Oct. 25, 2007
Int. Cl. F21V 7/20 (2006.01)
U.S. Cl. 362—218  [362/294; 362/373] 15 Claims
OG exemplary drawing
 
1. A display device comprising:
a discharge tube elongated in a longitudinal direction,
a reflector to reflect a light radiated from said discharge tube and imposed perpendicularly to said longitudinal direction with respect to said discharge tube,
a support member arranged at a position near an electrode of said discharge tube to support said discharge tube at a prescribed position with respect to said reflector and imposed perpendicularly to said longitudinal direction with respect to said discharge tube wherein the support member covers the outer periphery of a portion of the discharge tube near said electrode,
a heat conduction member imposed perpendicularly to said longitudinal direction with respect to said discharge tube and contacting a mid portion of said discharge tube in a longitudinal direction thereof so that said heat conduction member contacts to fasten said discharge tube at two or more opposite positions to the perpendicular direction thereof, and
wherein said heat conduction member contacts the mid portion of said discharge tube in the longitudinal direction thereof, so that a portion of said discharge tube near said electrode of said discharge tube is prevented from being the lowest point in temperature.