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TW200700832A - Back light unit and method to uniform the brightness thereof - Google Patents

Back light unit and method to uniform the brightness thereof

Info

Publication number
TW200700832A
TW200700832A TW094120967A TW94120967A TW200700832A TW 200700832 A TW200700832 A TW 200700832A TW 094120967 A TW094120967 A TW 094120967A TW 94120967 A TW94120967 A TW 94120967A TW 200700832 A TW200700832 A TW 200700832A
Authority
TW
Taiwan
Prior art keywords
brightness
uniform
frame
light unit
back light
Prior art date
Application number
TW094120967A
Other languages
English (en)
Other versions
TWI277804B (en
Inventor
Che-Chang Hu
Original Assignee
Chi Mei Optoelectronics Corp
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 Chi Mei Optoelectronics Corp filed Critical Chi Mei Optoelectronics Corp
Priority to TW094120967A priority Critical patent/TWI277804B/zh
Priority to US11/426,012 priority patent/US7517134B2/en
Publication of TW200700832A publication Critical patent/TW200700832A/zh
Application granted granted Critical
Publication of TWI277804B publication Critical patent/TWI277804B/zh

Links

Classifications

    • 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
    • G02F1/133608—Direct backlight including particular frames or supporting means
    • 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
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • 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
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/54—Arrangements for reducing warping-twist

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Planar Illumination Modules (AREA)
TW094120967A 2005-06-23 2005-06-23 Backlight unit and method to uniform the brightness thereof TWI277804B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
TW094120967A TWI277804B (en) 2005-06-23 2005-06-23 Backlight unit and method to uniform the brightness thereof
US11/426,012 US7517134B2 (en) 2005-06-23 2006-06-22 Backlight unit and method to uniform the brightness thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW094120967A TWI277804B (en) 2005-06-23 2005-06-23 Backlight unit and method to uniform the brightness thereof

Publications (2)

Publication Number Publication Date
TW200700832A true TW200700832A (en) 2007-01-01
TWI277804B TWI277804B (en) 2007-04-01

Family

ID=38626049

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094120967A TWI277804B (en) 2005-06-23 2005-06-23 Backlight unit and method to uniform the brightness thereof

Country Status (2)

Country Link
US (1) US7517134B2 (zh)
TW (1) TWI277804B (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108351545A (zh) * 2015-08-31 2018-07-31 堺显示器制品株式会社 显示装置
CN110737123A (zh) * 2018-07-18 2020-01-31 群创光电股份有限公司 显示装置

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101267082B1 (ko) * 2008-02-15 2013-05-23 엘지디스플레이 주식회사 백 라이트 유닛 및 이를 이용한 액정표시장치
TWI385438B (zh) * 2009-06-30 2013-02-11 Au Optronics Corp 框架結構、背光模組以及顯示模組
USRE46781E1 (en) 2009-11-12 2018-04-10 Lg Electronics Inc. Backlight unit and liquid crystal display including the same
KR101693655B1 (ko) 2009-11-12 2017-01-06 엘지전자 주식회사 백라이트 유닛 및 이를 포함하는 액정표시장치
KR20110103074A (ko) 2010-03-12 2011-09-20 엘지전자 주식회사 디스플레이 장치
TWI418900B (zh) * 2010-12-30 2013-12-11 Au Optronics Corp 背光模組及顯示裝置
US9829746B2 (en) * 2014-11-19 2017-11-28 Canon Kabushiki Kaisha Display apparatus having optical sheet
US10802322B1 (en) * 2016-03-29 2020-10-13 Sakai Display Products Corporation Display device
CN107765477B (zh) * 2016-08-23 2023-10-13 京东方科技集团股份有限公司 膜材、背光模组和显示装置
KR101758259B1 (ko) * 2016-12-26 2017-07-14 엘지전자 주식회사 디스플레이 장치
TWI815555B (zh) * 2022-07-14 2023-09-11 達擎股份有限公司 顯示裝置
CN120428474A (zh) * 2023-03-22 2025-08-05 武汉华星光电技术有限公司 背光模组及显示装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100258839B1 (ko) * 1998-01-24 2000-06-15 윤종용 엘씨디모듈
TW444872U (en) 2000-09-15 2001-07-01 Unipac Optoelectronics Corp Fixed structure for optical membrane fixed on the back light system of display
JP2002196312A (ja) 2000-12-25 2002-07-12 Hitachi Ltd 液晶表示装置
TW581264U (en) 2002-06-14 2004-03-21 Hannstar Display Corp Alignment device of optical diffuser
TW552440B (en) 2002-10-24 2003-09-11 Quanta Display Inc Fixing structure of optical film plate assembly of the backlight module
TWI272421B (en) * 2004-05-13 2007-02-01 Au Optronics Corp Backlight unit and liquid crystal display utilizing the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108351545A (zh) * 2015-08-31 2018-07-31 堺显示器制品株式会社 显示装置
CN108351545B (zh) * 2015-08-31 2021-04-06 堺显示器制品株式会社 显示装置
CN110737123A (zh) * 2018-07-18 2020-01-31 群创光电股份有限公司 显示装置

Also Published As

Publication number Publication date
US7517134B2 (en) 2009-04-14
TWI277804B (en) 2007-04-01
US20070297195A1 (en) 2007-12-27

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Legal Events

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