US Patent 8081271 Backlight apparatus and liquid crystal display apparatus
Patent 8081271 was granted and assigned to Panasonic on December, 2011 by the United States Patent and Trademark Office.
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Patent abstract
A backlight apparatus is provided that enables a balance of brightness to be maintained over the entire area of a display screen and long life to be achieved. The surface of substrate 130 is opposite the rear surface of liquid crystal panel 110. LEDs 140 are placed on the surface of substrate 130. LED drive circuits 150 supply LEDs 140 with a current that causes LEDs 140 to emit light that illuminates liquid crystal panel 110. LED drive circuits 150 supply a lower current to LEDs 140 placed in an area having a higher ambient temperature within the surface area of substrate 130.
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US Patent 08081271 Backlight apparatus and liquid crystal display apparatus US Patent 8081271 Backlight apparatus and liquid crystal display apparatus
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Patent Number
0808127100
Patent Number
808127100
Edits on 25 Mar, 2023
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
080812710
Date of Patent
December 20, 2011
0Patent Application Number
124653430
Date Filed
May 13, 2009
0Patent Primary Examiner
Edits on 27 Sep, 2022
Golden AI
Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
080812710
Date of Patent
December 20, 2011
0Patent Application Number
124653430
Date Filed
May 13, 2009
0Patent Primary Examiner
Edits on 14 Dec, 2021
Golden AI
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Infobox (+8 properties)
US Patent 08081271 Backlight apparatus and liquid crystal display apparatus
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
08081271
Date of patent
December 20, 2011
Patent application number
12465343
Date Filed
May 13, 2009
Patent primary examiner
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