TWI356362B - Backlight assembly - Google Patents

Backlight assembly Download PDF

Info

Publication number
TWI356362B
TWI356362B TW095131808A TW95131808A TWI356362B TW I356362 B TWI356362 B TW I356362B TW 095131808 A TW095131808 A TW 095131808A TW 95131808 A TW95131808 A TW 95131808A TW I356362 B TWI356362 B TW I356362B
Authority
TW
Taiwan
Prior art keywords
voltage
signal
lamps
switching
backlight assembly
Prior art date
Application number
TW095131808A
Other languages
English (en)
Chinese (zh)
Other versions
TW200721082A (en
Inventor
Ju Rae Kim
Ho Young Kim
Sook Gyu Min
Jung Won Hwang
Jun Boum Lim
Jeong Won Yun
Original Assignee
Samsung Electro Mech
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Samsung Electro Mech filed Critical Samsung Electro Mech
Publication of TW200721082A publication Critical patent/TW200721082A/zh
Application granted granted Critical
Publication of TWI356362B publication Critical patent/TWI356362B/zh

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3406—Control of illumination source
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133604—Direct backlight with lamps
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0233—Improving the luminance or brightness uniformity across the screen

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Liquid Crystal (AREA)
TW095131808A 2005-11-24 2006-08-29 Backlight assembly TWI356362B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20050112708 2005-11-24
KR1020060065722A KR100876106B1 (ko) 2005-11-24 2006-07-13 백라이트 어셈블리

Publications (2)

Publication Number Publication Date
TW200721082A TW200721082A (en) 2007-06-01
TWI356362B true TWI356362B (en) 2012-01-11

Family

ID=38112271

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095131808A TWI356362B (en) 2005-11-24 2006-08-29 Backlight assembly

Country Status (3)

Country Link
KR (1) KR100876106B1 (ko)
CN (1) CN100458527C (ko)
TW (1) TWI356362B (ko)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7663322B2 (en) 2007-07-20 2010-02-16 Samsung Electro-Mechanics Co., Ltd. Backlight driving system for liquid crystal display
KR100872255B1 (ko) * 2007-07-20 2008-12-05 삼성전기주식회사 액정 표시 장치의 백라이트 구동 장치
KR100883416B1 (ko) * 2007-08-30 2009-02-13 황인휘 형광램프용 안정기
KR100864905B1 (ko) * 2008-04-18 2008-10-22 삼성전기주식회사 램프 구동 회로
TWI401996B (zh) * 2009-02-27 2013-07-11 Ampower Technology Co Ltd 光源驅動裝置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000048981A (ja) * 1998-07-28 2000-02-18 Toshiba Lighting & Technology Corp 放電灯点灯装置及び照明装置
KR100576692B1 (ko) * 2000-07-06 2006-05-03 엘지전자 주식회사 액정표시장치의 백 라이트 램프 구동회로
TW502487B (en) * 2000-10-27 2002-09-11 Ambit Microsystems Corp DC/AC converter
CN100391314C (zh) * 2001-08-17 2008-05-28 鸿海精密工业股份有限公司 多灯管驱动系统
US6876157B2 (en) * 2002-06-18 2005-04-05 Microsemi Corporation Lamp inverter with pre-regulator
JP4338123B2 (ja) * 2003-04-25 2009-10-07 スミダコーポレーション株式会社 放電灯駆動装置
JP4794826B2 (ja) * 2003-06-06 2011-10-19 ソニー株式会社 電源装置

Also Published As

Publication number Publication date
TW200721082A (en) 2007-06-01
KR20070055319A (ko) 2007-05-30
CN1971380A (zh) 2007-05-30
KR100876106B1 (ko) 2008-12-26
CN100458527C (zh) 2009-02-04

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees