Backlight apparatus, and a liquid crystal display (LCD) therewith

• US 7,246,916 B2
• Filed: 09/16/2005
• Issued: 07/24/2007
• Est. Priority Date: 12/28/2001
• Status: Expired due to Fees

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Nitto, Eiji
• Primary Examiner(s): CARIASO, ALAN B
• Application Number:
  US11/228,564
• Publication Number:
  US 20060044838A1
• Time in Patent Office: 676 Days
• Field of Search: 362/218, 362/611, 362/614, 362/580, 362/630, 362/631, 362/632, 362/633, 362/634, 362/225, 362/223, 362/306, 362/369, 362/390, 349/70, 349/161
• US Class Current: 362/225
• CPC Class Codes: G02B 6/0031 Reflecting element, sheet or layer
• CPC Class Codes: G02B 6/0068 Arrangements of plural sources, e.g. multi-colour light sources
• CPC Class Codes: G02B 6/0071 with elongated shape, e.g. tube
• CPC Class Codes: G02B 6/0083 Details of electrical connections of light sources to drivers, circuit boards, or the like
• CPC Class Codes: G02B 6/0085 Means for removing heat created by the light source from the package heat extraction or cooling elements for semiconductor light sources in general H01L33/64
• CPC Class Codes: G02B 6/009 of the light source in the package G02B6/0021 takes precedence
• CPC Class Codes: G02F 1/133615 Edge-illuminating devices, i.e. illuminating from the side

Abstract

Dissipation of heat generated by a luminescent source, such as a fluorescent lamp, of a backlight apparatus and an LCD therewith is enhanced by providing a proximity section in a holder, making the hottest part the closest to the holder for efficient heat conduction.

Claims

1. A backlight apparatus of an edge light type, comprising:

at least one luminescent source having an electrode section for conducting electric current,

a holder in which the luminescent source is provided,

a housing in which the holder is provided, and

a supporting component made from an insulating material attached to the luminescent source for supporting the luminescent source in the holder and partially enclosing the electrode section of the luminescent source, said supporting component having an insulator projection section such that the insulator projection section comes between a part of the electrode section of the luminescent source that is not enclosed by the supporting component and the holder.

2. The backlight apparatus as claimed in claim 1, wherein the insulator projection section is formed only in a position that faces the holder.