Light source for backlighting

Details Light source for backlighting Light source for backlighting

1997-03-19

1999-12-28

Cariaso, Alan

Illumination

Illuminated scale or dial

Internal light source

362246, 362247, 362248, 362800, G01D 1128

Patent

active

060072091

ABSTRACT:
A light source for a display panel of the type used in notebook computers. The light source consists of a housing having diffusively reflecting bottom and side interior surfaces that form a cavity. The housing defines an aperture that is juxtaposed with a rear surface of the display panel. A first series of LEDs is mounted within the cavity around the perimeter of the aperture and is shielded from the aperture by perimeter baffles that extend around the periphery of the aperture. A second series of LEDs is mounted within the cavity on the bottom wall of the housing. A series of baffles is interposed between the second series of LEDs and the aperture. A series of light quality enhancing films is interposed between the cavity and the display panel. The light source produces light of a uniform character with relatively high intensity and whiteness.

REFERENCES:
patent: Re33987 (1992-07-01), Suzawa
patent: 1734834 (1929-11-01), Steward et al.
patent: 2761056 (1956-08-01), Lazo
patent: 2907869 (1959-10-01), Hudson et al.
patent: 3223833 (1965-12-01), Protzmann
patent: 3349234 (1967-10-01), Schwarz
patent: 3586851 (1971-06-01), Rudolph et al.
patent: 3957351 (1976-05-01), Stockwell
patent: 4011001 (1977-03-01), Moriya
patent: 4043636 (1977-08-01), Eberhardt et al.
patent: 4118110 (1978-10-01), Saurer et al.
patent: 4183628 (1980-01-01), Laesser et al.
patent: 4195915 (1980-04-01), Lichty et al.
patent: 4212048 (1980-07-01), Castleberry
patent: 4252416 (1981-02-01), Jaccard
patent: 4440474 (1984-04-01), Trcka
patent: 4453200 (1984-06-01), Trcka et al.
patent: 4528617 (1985-07-01), Blackington
patent: 4560264 (1985-12-01), Kitazawa et al.
patent: 4616295 (1986-10-01), Jewell et al.
patent: 4649462 (1987-03-01), Dobrowolski et al.
patent: 4706173 (1987-11-01), Hamada et al.
patent: 4720706 (1988-01-01), Stine
patent: 4723840 (1988-02-01), Humbert et al.
patent: 4735495 (1988-04-01), Henkes
patent: 4737896 (1988-04-01), Mochizuki et al.
patent: 4766526 (1988-08-01), Morimoto et al.
patent: 4798448 (1989-01-01), van Raalte
patent: 4826294 (1989-05-01), Imoto
patent: 4914553 (1990-04-01), Hamada et al.
patent: 4945349 (1990-07-01), Sanai
patent: 4998804 (1991-03-01), Horiuchi
patent: 5008658 (1991-04-01), Russay et al.
patent: 5029045 (1991-07-01), Sanai et al.
patent: 5029986 (1991-07-01), De Vaan
patent: 5050946 (1991-09-01), Hathaway et al.
patent: 5070431 (1991-12-01), Kitazawa et al.
patent: 5128783 (1992-07-01), Abileah et al.
patent: 5161041 (1992-11-01), Abileah et al.
patent: 5202950 (1993-04-01), Arego et al.
patent: 5440197 (1995-08-01), Gleckman
patent: 5485291 (1996-01-01), Qiao et al.
patent: 5575549 (1996-11-01), Ishikawa et al.
patent: 5655832 (1997-08-01), Pelka et al.

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