Blacklight with structured surfaces

Optical waveguides – Noncyclindrical or nonplanar shaped waveguide

Reexamination Certificate

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C385S031000

Reexamination Certificate

active

07046905

ABSTRACT:
A backlight includes a lightguide, a light source disposed with respect to the lightguide to introduce light into the lightguide and a turning film. Optical structures are formed in one of an output surface and a back surface of the lightguide. The optical structures are arranged to extract light from the lightguide. A back reflector is disposed adjacent the back surface. The optical structures are formed to include a varying pattern arranged to mask non-uniformities in the output of the lightguide.

REFERENCES:
patent: 586214 (1897-07-01), Basquin
patent: 586220 (1897-07-01), Basquin
patent: 586247 (1897-07-01), Soper
patent: 586248 (1897-07-01), Soper
patent: 586249 (1897-07-01), Soper
patent: 586251 (1897-07-01), Soper
patent: 586252 (1897-07-01), Soper
patent: 607792 (1898-07-01), Winger
patent: 650209 (1900-05-01), White
patent: 713182 (1902-11-01), Wadsworth
patent: 719066 (1903-01-01), Wadsworth
patent: 720386 (1903-02-01), Wadsworth
patent: 720987 (1903-02-01), Wadsworth
patent: 752429 (1904-02-01), Wadsworth
patent: 755196 (1904-03-01), Wadsworth
patent: 818208 (1906-04-01), Wadsworth
patent: 2099034 (1937-11-01), Rolph
patent: 2115178 (1938-04-01), Rolph
patent: 2143148 (1939-01-01), Guth
patent: 2179863 (1939-11-01), Rolph
patent: 2223841 (1940-12-01), Biller
patent: 2347665 (1944-05-01), Christensen et al.
patent: 2398507 (1946-04-01), Rolph
patent: 2714816 (1955-08-01), Pennell
patent: 2844998 (1958-07-01), Vincent
patent: 3721818 (1973-03-01), Stahlhut
patent: 3735124 (1973-05-01), Stahlut
patent: 3994564 (1976-11-01), Somogyi
patent: 4053208 (1977-10-01), Kato et al.
patent: 4127693 (1978-11-01), Lemelson
patent: 4233651 (1980-11-01), Fabbri
patent: 4242723 (1980-12-01), Fabbri et al.
patent: 4298249 (1981-11-01), Gloor et al.
patent: 4337759 (1982-07-01), Popovich et al.
patent: 4416515 (1983-11-01), Funada et al.
patent: 4450509 (1984-05-01), Henry
patent: 4542449 (1985-09-01), Whitehead
patent: 4755921 (1988-07-01), Nelson
patent: 4804253 (1989-02-01), Stewart
patent: 4870484 (1989-09-01), Sonehara
patent: 4906070 (1990-03-01), Cobb, Jr.
patent: 4984144 (1991-01-01), Cobb, Jr. et al.
patent: 5005108 (1991-04-01), Pristash et al.
patent: 5022728 (1991-06-01), Fandrich
patent: 5040883 (1991-08-01), Cobb
patent: 5079675 (1992-01-01), Nakayama
patent: 5126882 (1992-06-01), Oe et al.
patent: 5128783 (1992-07-01), Abileah et al.
patent: 5151801 (1992-09-01), Hiroshima
patent: 5161041 (1992-11-01), Abileah et al.
patent: 5190370 (1993-03-01), Miller et al.
patent: 5206746 (1993-04-01), Ooi et al.
patent: 5262928 (1993-11-01), Kashima et al.
patent: 5280371 (1994-01-01), McCartney, Jr. et al.
patent: 5303322 (1994-04-01), Winston et al.
patent: 5394255 (1995-02-01), Yokota et al.
patent: 5396350 (1995-03-01), Beeson et al.
patent: 5402324 (1995-03-01), Yokoyama et al.
patent: 5467208 (1995-11-01), Kokawa et al.
patent: 5467417 (1995-11-01), Nakamura et al.
patent: 5485291 (1996-01-01), Qiao et al.
patent: 5499138 (1996-03-01), Iba
patent: 5521797 (1996-05-01), Kashima et al.
patent: 5550657 (1996-08-01), Tanaka et al.
patent: 5552907 (1996-09-01), Yokota et al.
patent: 5575549 (1996-11-01), Ishikawa et al.
patent: 5587816 (1996-12-01), Gunjima et al.
patent: 5592332 (1997-01-01), Nishio et al.
patent: 5594830 (1997-01-01), Winston et al.
patent: 5598280 (1997-01-01), Nishio et al.
patent: 5600455 (1997-02-01), Ishikawa et al.
patent: 5600462 (1997-02-01), Suzuki et al.
patent: 5627926 (1997-05-01), Nakamura et al.
patent: 5711589 (1998-01-01), Oe et al.
patent: 5735590 (1998-04-01), Kashima et al.
patent: 5771328 (1998-06-01), Wortman et al.
patent: 5775791 (1998-07-01), Yoshikawa
patent: 5779337 (1998-07-01), Saito et al.
patent: 5783120 (1998-07-01), Ouderkirk et al.
patent: 5808709 (1998-09-01), Davis et al.
patent: 5825542 (1998-10-01), Cobb, Jr. et al.
patent: 5825543 (1998-10-01), Ouderkirk et al.
patent: 5828488 (1998-10-01), Ouderkirk et al.
patent: 5831697 (1998-11-01), Evanicky et al.
patent: 5854872 (1998-12-01), Tai
patent: 5921651 (1999-07-01), Ishikawa
patent: 5997148 (1999-12-01), Ohkawa
patent: 5999685 (1999-12-01), Goto
patent: 6027222 (2000-02-01), Oki et al.
patent: 6088074 (2000-07-01), Suzuki
patent: 6104455 (2000-08-01), Kashima
patent: 6322236 (2001-11-01), Campbell et al.
patent: 6330386 (2001-12-01), Wagner et al.
patent: 6354709 (2002-03-01), Campbell et al.
patent: 0 167 721 (1986-01-01), None
patent: 0 534 140 (1993-03-01), None
patent: 0 770 818 (1997-05-01), None
patent: 0 787 942 (1997-08-01), None
patent: 0 426 411 (2005-04-01), None
patent: 2 606 861 (1988-05-01), None
patent: 806124 (1958-12-01), None
patent: 52-6496 (1977-01-01), None
patent: 54-127299 (1979-10-01), None
patent: 60-70601 (1985-04-01), None
patent: 60-73618 (1985-04-01), None
patent: 61-11782 (1986-01-01), None
patent: 61-158367 (1986-07-01), None
patent: 63-10402 (1988-01-01), None
patent: 2-28842 (1990-06-01), None
patent: 2-176629 (1990-07-01), None
patent: 2-214822 (1990-08-01), None
patent: 3-184020 (1991-08-01), None
patent: 3-184021 (1991-08-01), None
patent: 3-191329 (1991-08-01), None
patent: 6-18707 (1994-01-01), None
patent: 6-82635 (1994-03-01), None
patent: 6-242322 (1994-09-01), None
patent: 07-159622 (1995-06-01), None
patent: 07159622 (1995-06-01), None
patent: 08304607 (1996-11-01), None
patent: 2559579 (1996-12-01), None
patent: 9-5528 (1997-01-01), None
patent: 09080429 (1997-03-01), None
patent: 09105804 (1997-04-01), None
patent: 09138301 (1997-05-01), None
patent: 09145932 (1997-06-01), None
patent: 09145933 (1997-06-01), None
patent: 09197134 (1997-07-01), None
patent: 09306221 (1997-11-01), None
patent: 10160939 (1998-06-01), None
patent: 10282316 (1998-10-01), None
patent: 10282343 (1998-10-01), None
patent: 10-339815 (1998-12-01), None
patent: 11202135 (1999-07-01), None
patent: 11250714 (1999-09-01), None
patent: 2000089009 (2000-03-01), None
patent: WO 89/02606 (1989-03-01), None
patent: WO-95/27919 (1995-10-01), None
patent: WO-01/27527 (2001-04-01), None
IBM Technical Disclosure Bulletin, vol. 29, No. 11,Backlighting for Liquid Crystal Display,Apr. 1987.
IBM Technical Disclosure Bulletin, vol. 31, No. 2,Flat Panel Backlight Reflecting Device,Jul. 1988.
IBM Technical Disclosure Bulletin, vol. 33, No. 1B,Polarized Backlight for Liquid Crystal Display,Jun. 1990.
IBM Technical Disclosure Bulletin, vol. 33, No. 9,High Efficiency Back Light for LCD,Feb. 1991.
JP 096031217A, Machine Translation, ISTA's Paterra(tm), 20 pages.
JP 2000089009A, Machine Translation, ISTA's Paterra(tm), 20 pages.
International Search Report PCT/US01/21294 dated Jan. 25, 2001.

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