KR100661661B1 - 디스플레이장치 및 그 제어방법 - Google Patents
디스플레이장치 및 그 제어방법 Download PDFInfo
- Publication number
- KR100661661B1 KR100661661B1 KR1020050059379A KR20050059379A KR100661661B1 KR 100661661 B1 KR100661661 B1 KR 100661661B1 KR 1020050059379 A KR1020050059379 A KR 1020050059379A KR 20050059379 A KR20050059379 A KR 20050059379A KR 100661661 B1 KR100661661 B1 KR 100661661B1
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- KR
- South Korea
- Prior art keywords
- power
- light emitting
- unit
- driving
- units
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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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
- G09G3/04—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions
- G09G3/06—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions using controlled light sources
- G09G3/12—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions using controlled light sources using electroluminescent elements
- G09G3/14—Semiconductor devices, e.g. diodes
-
- 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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
-
- 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
-
- 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
-
- 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
- G09G3/2007—Display of intermediate tones
- G09G3/2014—Display of intermediate tones by modulation of the duration of a single pulse during which the logic level remains constant
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/028—Generation of voltages supplied to electrode drivers in a matrix display other than LCD
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mathematical Physics (AREA)
- Optics & Photonics (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Led Devices (AREA)
- Liquid Crystal (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
Description
Claims (10)
- 복수의 발광 유닛을 갖는 디스플레이장치에 있어서,상기 발광 유닛보다 적은 개수로 마련되며 상기 발광 유닛에 구동전원을 출력하는 전원구동부와;상기 구동전원이 상기 발광 유닛 중 하나에 인가되도록 스위칭하는 전원 스위칭부와;상기 구동전원이 복수의 상기 발광 유닛에 순차적으로 공급되도록 상기 전원스위칭부를 제어하는 제어부를 포함하는 것을 특징으로 하는 디스플레이장치.
- 제1항에 있어서,상기 전원구동부는 복수개 마련되고,상기 제어부는 각각의 상기 발광 유닛에 대응하는 상기 구동전원을 순차적으로 출력하도록 각각의 상기 전원구동부를 제어하는 것을 특징으로 하는 디스플레이장치.
- 제2항에 있어서,상기 제어부는 상기 전원구동부 중 하나에서 생성되는 상기 구동전원이 상기 발광 유닛 중 하나에 입력되도록 상기 전원스위칭부를 제어하고, 상기 전원구동부 중 다른 하나가 상기 발광 유닛 중 다음 순위로 발광될 발광 유닛에 인가될 구동전 원을 생성하도록 제어하는 것을 특징으로 하는 디스플레이장치.
- 제2항에 있어서,상기 제어부는 소정의 기준전압을 상기 전원구동부에 인가하고,상기 전원구동부는 상기 발광 유닛에 인가되는 전류에 비례하는 출력전압과 상기 기준전압을 비교하여 상기 구동전원을 출력하는 것을 특징으로 하는 디스플레이장치.
- 제4항에 있어서,상기 전원구동부는 상기 구동전압과 상기 기준전압을 비교하여 PWM 신호를 발생하는 PWM 발생부와 상기 PWM 신호에 따라 전원공급을 스위칭하는 PWM스위칭부를 포함하는 것을 특징으로 하는 디스플레이장치.
- 제1항에 있어서,상기 전원스위칭부는 상기 복수의 발광 유닛에 각각 마련된 스위칭 소자를 포함하며,상기 제어부는 상기 스위칭 소자가 복수의 상기 전원구동부로부터 출력된 상기 구동전원을 선택적으로 단속하여, 상기 구동전원이 상기 발광 유닛에 순차적으로 공급되도록 제어하는 것을 특징으로 하는 디스플레이장치.
- 복수의 발광 유닛을 갖는 디스플레이장치의 제어방법에 있어서,상기 복수의 발광 유닛보다 적은 개수로 전원구동부를 마련하는 단계와;상기 발광 유닛에 공급될 구동전원을 생성하는 단계와;복수의 상기 발광 유닛 중 하나에 상기 구동전원을 인가하는 단계와;상기 구동전원이 각각의 상기 발광 유닛에 순차적으로 공급되는 단계를 포함하는 것을 특징으로 하는 디스플레이장치의 제어방법.
- 제7항에 있어서,각각의 상기 전원구동부가 각각의 상기 발광 유닛에 대응하는 상기 구동전원을 순차적으로 출력하는 단계를 포함하는 것을 특징으로 하는 디스플레이장치의 제어방법.
- 제8항에 있어서,상기 전원구동부 중 하나에서 출력되는 상기 구동전원이 상기 발광 유닛 중 하나에 인가되는 단계와;상기 전원구동부 중 다른 하나는 다음 순위로 발광될 발광 유닛에 인가될 구동전원을 생성하는 단계를 포함하는 것을 특징으로 하는 디스플레이장치의 제어방법.
- 제8항에 있어서,상기 구동전원은 상기 발광 유닛에 인가되는 전류에 비례하는 출력전압을 소정의 기준전압과 비교하여 생성되는 것을 특징으로 하는 디스플레이장치의 제어방법.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020050059379A KR100661661B1 (ko) | 2005-07-01 | 2005-07-01 | 디스플레이장치 및 그 제어방법 |
US11/433,573 US8159419B2 (en) | 2005-07-01 | 2006-05-15 | Display apparatus and control method thereof |
CNB2006100930699A CN100476914C (zh) | 2005-07-01 | 2006-06-20 | 显示设备及其控制方法 |
JP2006171822A JP4602943B2 (ja) | 2005-07-01 | 2006-06-21 | ディスプレイ装置及びその制御方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020050059379A KR100661661B1 (ko) | 2005-07-01 | 2005-07-01 | 디스플레이장치 및 그 제어방법 |
Publications (1)
Publication Number | Publication Date |
---|---|
KR100661661B1 true KR100661661B1 (ko) | 2006-12-26 |
Family
ID=37588817
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020050059379A Expired - Fee Related KR100661661B1 (ko) | 2005-07-01 | 2005-07-01 | 디스플레이장치 및 그 제어방법 |
Country Status (4)
Country | Link |
---|---|
US (1) | US8159419B2 (ko) |
JP (1) | JP4602943B2 (ko) |
KR (1) | KR100661661B1 (ko) |
CN (1) | CN100476914C (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105719594A (zh) * | 2014-12-01 | 2016-06-29 | 业鑫科技顾问股份有限公司 | 背光驱动模组及具有背光驱动模组的显示设备 |
Families Citing this family (13)
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DE102009007504A1 (de) * | 2009-02-05 | 2010-08-12 | E:Cue Control Gmbh | Anzeigevorrichtung, Betriebsverfahren und Beleuchtungsvorrichtung |
JP2012108350A (ja) * | 2010-11-18 | 2012-06-07 | Mitsubishi Electric Corp | 投写型映像表示装置 |
TWI433116B (zh) * | 2011-07-12 | 2014-04-01 | Orise Technology Co Ltd | 背光區域控制系統中利用背光擴散之近似方法及裝置 |
KR101353254B1 (ko) | 2012-06-28 | 2014-01-17 | 삼성전기주식회사 | 엘이디 직구동 회로, 엘이디 직구동 장치 및 방법 |
US11792898B2 (en) | 2012-07-01 | 2023-10-17 | Ideal Industries Lighting Llc | Enhanced fixtures for area lighting |
US11160148B2 (en) * | 2017-06-13 | 2021-10-26 | Ideal Industries Lighting Llc | Adaptive area lamp |
CN103854598B (zh) * | 2012-11-29 | 2016-08-10 | 利亚德光电股份有限公司 | Led显示器 |
CN105448248B (zh) * | 2016-01-15 | 2018-05-08 | 深圳市华星光电技术有限公司 | 功率调节电路及液晶显示装置 |
US10529696B2 (en) | 2016-04-12 | 2020-01-07 | Cree, Inc. | High density pixelated LED and devices and methods thereof |
US10734363B2 (en) | 2017-08-03 | 2020-08-04 | Cree, Inc. | High density pixelated-LED chips and chip array devices |
US10903265B2 (en) | 2018-12-21 | 2021-01-26 | Cree, Inc. | Pixelated-LED chips and chip array devices, and fabrication methods |
US11817526B2 (en) | 2019-10-29 | 2023-11-14 | Creeled, Inc. | Texturing for high density pixelated-LED chips and chip array devices |
US11437548B2 (en) | 2020-10-23 | 2022-09-06 | Creeled, Inc. | Pixelated-LED chips with inter-pixel underfill materials, and fabrication methods |
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-
2005
- 2005-07-01 KR KR1020050059379A patent/KR100661661B1/ko not_active Expired - Fee Related
-
2006
- 2006-05-15 US US11/433,573 patent/US8159419B2/en not_active Expired - Fee Related
- 2006-06-20 CN CNB2006100930699A patent/CN100476914C/zh not_active Expired - Fee Related
- 2006-06-21 JP JP2006171822A patent/JP4602943B2/ja not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105719594A (zh) * | 2014-12-01 | 2016-06-29 | 业鑫科技顾问股份有限公司 | 背光驱动模组及具有背光驱动模组的显示设备 |
CN105719594B (zh) * | 2014-12-01 | 2019-06-18 | 鸿富锦精密工业(深圳)有限公司 | 背光驱动模组及具有背光驱动模组的显示设备 |
Also Published As
Publication number | Publication date |
---|---|
US20070001943A1 (en) | 2007-01-04 |
CN100476914C (zh) | 2009-04-08 |
JP2007011338A (ja) | 2007-01-18 |
CN1892754A (zh) | 2007-01-10 |
US8159419B2 (en) | 2012-04-17 |
JP4602943B2 (ja) | 2010-12-22 |
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