US Patent 7128461 Back light apparatus

Patent 7128461 was granted and assigned to Coretronic on October, 2006 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Coretronic

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

71284610

Patent Inventor Names

Ping-Feng Hwang0

Date of Patent

October 31, 2006

Patent Application Number

107074940

Date Filed

December 18, 2003

Patent Primary Examiner

‌

Sandra O'Shea

Patent abstract

A back light apparatus comprises a base having a container, a lamp module, a diffuser, and at least one elastic device. The inside surface of the base are coated a reflection layers. The lamp module consists of CCFLs disposed in the container. One end of the elastic element is fixed on the bottom surface of the container; the other end supports the diffuser. The elastic device reduces the deformation of the diffuser to avoid forming the uneven surface on the diffuser. That is, it can provide the high and even brightness for a liquid crystal display panel.