TWI345107B - Primary color matrix of led - Google Patents

Primary color matrix of led Download PDF

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Publication number
TWI345107B
TWI345107B TW095123417A TW95123417A TWI345107B TW I345107 B TWI345107 B TW I345107B TW 095123417 A TW095123417 A TW 095123417A TW 95123417 A TW95123417 A TW 95123417A TW I345107 B TWI345107 B TW I345107B
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Taiwan
Prior art keywords
led
matrix
leds
light
minimum
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TW095123417A
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English (en)
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TW200801718A (en
Inventor
Chunghan Wen
Pangyen Liu
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Everlight Electronics Co Ltd
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Application filed by Everlight Electronics Co Ltd filed Critical Everlight Electronics Co Ltd
Priority to TW095123417A priority Critical patent/TWI345107B/zh
Priority to US11/525,846 priority patent/US7616184B2/en
Priority to JP2007023250A priority patent/JP4332565B2/ja
Publication of TW200801718A publication Critical patent/TW200801718A/zh
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Publication of TWI345107B publication Critical patent/TWI345107B/zh

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    • 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
    • G09G3/3413—Details of control of colour illumination sources
    • 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
    • G02F1/133603—Direct backlight with LEDs
    • 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
    • G02F1/133609—Direct backlight including means for improving the color mixing, e.g. white
    • 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
    • G02F1/133613—Direct backlight characterized by the sequence of light sources
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0439—Pixel structures
    • G09G2300/0452—Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
    • 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

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Mathematical Physics (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Planar Illumination Modules (AREA)
  • Led Device Packages (AREA)
  • Led Devices (AREA)
  • Liquid Crystal (AREA)

Description

九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種發光二極體（light emitting diode; LED)，且特別是有關於一種應用於液晶顯示器中背光模組 之發光二極體陣列》 【先前技術】 背光模組的操作原理，.係經由導光板將背光源的光線 導引成平面光源，來確保亮度的均勻性。背光模組常用的 背光源例如有冷陰極螢光燈以及發光二極體等。雖然目前 係以冷陰極螢光燈為主流，然而對發光二極體的需求卻與 曰增加。相較於冷陰極螢光燈，發光二極體具有體積小、 壽命長、驅動電壓低、耗電量少以及耐震性佳等優點。 一般而言，以LED背光源通常會直接使用白色led或 是以紅綠藍（RGB)三原色LED混光而發出的白色光。由於 白色LED色彩飽和度低，所以大部分用於電視機的LED背 光模組係以RGB三原色LED來混光而發出白色光。請參 照第1圖，係繪示一種習知的RGB三原色LED的配置排 列之矩陣示意圖。在第1圖中，RGB之配置矩陣係由 的矩陣所組成，且以此矩陣為一最小重複矩陣單元。如第i 圖所示，綠色LED之個數分別為紅色LED與藍色Led之 個數的兩倍，且其係排列於第丨行第2列與第2行第^列 中。而紅色LED與藍色LED則分別排列於第！行第ι列與 第2行第2列中。 習知的LED背光源則是以上述之RGB配置矩陣為一 =複：元’接著再依背光源尺寸大小的需求來調整配 :矩陣的最小重複單元數量，以組成LED背光源。在背光 ^组中…般會在距離LED背光源約為2_5公分處再加上 =具有不同功能之光學膜片，如擴散板、聚光片等，以 =向背光模Μ之亮度。然、而，由於受限於led背光源至光 予膜片之混光距離，f知以RGB配置矩陣作為led背光 源僅能在LED面板的中間區域產生均勻白光，而卻無法於 周邊處均勻地產生白光。倘若欲進一步増加混光距離，不 僅在LED面板周邊處會產生色偏的現象，而且會增加背光 模組的體積1是縮小混光距離，又容易會有橫紋色偏的 問題’而且會讓LED面板周邊的色偏現象更為嚴重。因此， 如何有效地利用RGB配置矩陣來混出白光，且能在背光源 到光學膜片之最小距離下’又能有效地產生均句且全面性 地白色光’為目前重要考量的項目之一。 因此，有必要提供一種新的RGB配置排列，以解決上 述之問題。 【發明内容】 因此本發明的目的就是在提供一種三原色LED之配置 矩陣，不僅可以在背光源至光學模板之最小距離下均勻地 混出白光’更可以產生全面性的均勻白光。 根據本發明之上述目的，提出一種三原色LED之配置 矩陣裝置。二原色LED配置矩陣裝置係應用於一液晶顯示 器之一背光源中，其係包含第一 LED、第二及第三 LED。其中，第一 LED、第二LED與第三[ED係排列成 1345107 =4的矩陣單元，且以此4χ4的矩陣單元為_最小重複矩陣 單元°第一LED、第三LED與第三LED之個數比為2: ] ·· 卜最小矩陣單元之每—行與每—列中具有兩個第—咖， 且每-個第-LED係不相鄰，亦即上下左右間隔排列 :矩陣單元I最小矩料元之每—行每—列巾分別具有 一個第二LED與一個第三LED。 依照本發明一較佳實施例，上述之第一 LED、第二；lED 第三LED所發出之光分別為紅藍綠三原色之…在本發明 之一較佳實施例中，第一 led較佳為綠色lEd。 第一 LED、第二LED與第三LED係分別以α、点與 r表不，其t最小矩陣單元較佳排列如下： a β a r Ϊ a β a a Υ a β β a r a 或者，更可以在上述第—LEDa之排列位置不改變的 情況下’將第二LED3與第三LEDt之排列位置互換。 在本發明之再一較佳實施例中，可以調整上述之第一 LEDa之排列位置，其較佳排列如下： β α γ d a Y a β r cc β a _α β a γ 在本發明之更一較佳實施例中，更可以在上述第一 LEDa之排列位置不改變的情況下，將第I㈣点與第三 LED τ之排列位置互換。 8 1345107 因此，利用本發明之RGB三原色配置矩陣所組成之背 光源，可以在背光源至光學模板之最小距離下，約介於i5 mm至25 mm之間，均勻地混出白光，以降低周邊區域色 偏的間題。再者’應用本發明更可以均勻地且全面性地發 出白光。 【實施方式】 本發明提供-種職三原色LED之配置矩陣，以均 勻混出白光。RGB三原色LED配置矩陣係由第一 led、第 二LED與第三LED所組成，且係定義㈣的矩陣為一最小 的矩陣單元。其中，第—LED、第二LED與第三led之 個數比為2 : 1 : 1。上述之第一 LED、第二㈣第三咖 所發出之光分別為紅藍綠三原色之…在本發明之一較佳 實施例中，第-LED較佳為綠色LED，但並不用以限定本 發明之範圍。 产上述之最小矩陣單元之每_行與每_列中分別具有兩 個第- LED，且每-個第-LED係上下左右間隔排列於最 小矩陣單元中。第—LED係以α表示之。請參照第2_3圖， 其繪示依縣發明之—較佳實_之第—LED的配置矩陣 之示意圖。如第2圖所示’第一 係排列於⑴"、⑴ 3]、[2, 2]、[2, 4]、[3, 1]、[3, 3]、[4, 2]與[4, 4]的位置上。’ 也就是說’每一行與每—列分別具有兩個第一咖。，且 於該最小矩料元之每-個第—LEDa彼此不相鄰， 上下左右間隔排列。 或者，更可以依需求將第—LEDa排列為如第3圖所 9

Claims (1)

1345107 100年5月5日修正替換頁 十、申請專利範圍 一種發光二極體背光源裝置，係制於-顯示器， 該發光二極时光源裝置具有_光源，該光源由多個矩陣 單元所構成，該發光二極體背光源裝置包括： MxN個矩陣單元’以構成一矩形的該發光二極體背光 源裝置，各該矩陣單元用以發出白^，且各該矩陣單元包 括有以4x4矩陣排列且係分別選自於由紅色led、藍色 與綠色LED所組成之族群的至少一第一 led、至少一第二 led以及至少-第三LED，其中該第一 LED、該第二咖 與該第三LED之個數比為2: 1: i，在各該矩陣單元中該 些第- LED互不相鄰且每—行與每—列中分別具有兩個第 - LED、-個第二LED與一個第三㈣，其中啦卜 》1 且 MxNg 2。 a β a r 7 a β a a r a β β a r a 2.如申請專利範圍帛i項所述之發光二極 置，其中該第一 LED、該第二LED與該第三咖係分^ 以α、冷與r表示，該最小矩陣單元係排列如下：
发如申請專利範圍第1項所述之發光二極體背光源裝 其中該第一LED、該第二LED與該第三LED係分別 14 1345107 、/s與r表，’該最小矩陣單元係排列 a Y a β β a Ύ a a β a Ύ ϊ a β a 100年5月5日修正替換頁 如下： „麵！項所述之發光二極體背 置其中該第一 LED、該第二LED盥哕筮-τ "亥第二LED係分別 β a Y a a r a β r a β a a β a r. α、冷與7*表示，該最小矩陣單元係排列如下. 5·如申請專利範圍第1項所述之發光二極體背光源裝 置’其中該第一 LED、該第二LED與該第三led係八 泠與r表示，該最小矩陣單元係排列如下. r a β a a β a r β a r a a y a β 15
TW095123417A 2006-06-28 2006-06-28 Primary color matrix of led TWI345107B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
TW095123417A TWI345107B (en) 2006-06-28 2006-06-28 Primary color matrix of led
US11/525,846 US7616184B2 (en) 2006-06-28 2006-09-25 Arrangement matrix of primary color LEDs
JP2007023250A JP4332565B2 (ja) 2006-06-28 2007-02-01 三原色発光ダイオードがマトリクス配置された装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW095123417A TWI345107B (en) 2006-06-28 2006-06-28 Primary color matrix of led

Publications (2)

Publication Number Publication Date
TW200801718A TW200801718A (en) 2008-01-01
TWI345107B true TWI345107B (en) 2011-07-11

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TW095123417A TWI345107B (en) 2006-06-28 2006-06-28 Primary color matrix of led

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US (1) US7616184B2 (zh)
JP (1) JP4332565B2 (zh)
TW (1) TWI345107B (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI372476B (en) 2008-11-20 2012-09-11 Everlight Electronics Co Ltd Circuit structure of package carrier and multi-chip package
CN104282230B (zh) 2013-07-10 2017-04-05 上海和辉光电有限公司 像素阵列及具有该像素阵列的平面显示器
CN103325315B (zh) * 2013-07-10 2015-09-16 上海和辉光电有限公司 像素阵列及具有该像素阵列的显示器
CN103345887B (zh) * 2013-07-10 2016-06-15 上海和辉光电有限公司 像素阵列及具有该像素阵列的显示器

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3292133B2 (ja) 1997-04-14 2002-06-17 日亜化学工業株式会社 Ｌｅｄ表示器及びそれを用いた表示装置
JP3724263B2 (ja) * 1998-09-11 2005-12-07 セイコーエプソン株式会社 液晶パネルの駆動装置及び液晶装置
US6200002B1 (en) * 1999-03-26 2001-03-13 Philips Electronics North America Corp. Luminaire having a reflector for mixing light from a multi-color array of leds
DE10016817A1 (de) 2000-04-05 2001-10-18 Mannesmann Vdo Ag Farb-Head-up Display, insbesondere für ein Fahrzeug
US6608614B1 (en) * 2000-06-22 2003-08-19 Rockwell Collins, Inc. Led-based LCD backlight with extended color space
US20020159002A1 (en) 2001-03-30 2002-10-31 Koninklijke Philips Electronics N.V. Direct backlighting for liquid crystal displays
US7858994B2 (en) 2006-06-16 2010-12-28 Articulated Technologies, Llc Solid state light sheet and bare die semiconductor circuits with series connected bare die circuit elements
KR101095637B1 (ko) 2004-09-23 2011-12-19 삼성전자주식회사 광 발생 장치, 이를 갖는 백라이트 어셈블리 및 백라이트어셈블리를 갖는 표시장치
JP2006278368A (ja) 2005-03-28 2006-10-12 Sony Corp 光源装置および表示装置
JP2006331839A (ja) 2005-05-26 2006-12-07 Chi Mei Optoelectronics Corp 発光ダイオードアレイと直下型バックライトモジュール
TW200719026A (en) * 2005-11-10 2007-05-16 Chi Lin Technology Co Ltd LED array
KR100691628B1 (ko) * 2006-04-07 2007-03-12 삼성전기주식회사 Ｌｅｄ 어레이 구동 장치

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JP4332565B2 (ja) 2009-09-16
JP2008010392A (ja) 2008-01-17
US7616184B2 (en) 2009-11-10
US20080001908A1 (en) 2008-01-03
TW200801718A (en) 2008-01-01

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