WO2009148244A3 - Pmo led driving circuit and driving method - Google Patents

Pmo led driving circuit and driving method Download PDF

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Publication number
WO2009148244A3
WO2009148244A3 PCT/KR2009/002915 KR2009002915W WO2009148244A3 WO 2009148244 A3 WO2009148244 A3 WO 2009148244A3 KR 2009002915 W KR2009002915 W KR 2009002915W WO 2009148244 A3 WO2009148244 A3 WO 2009148244A3
Authority
WO
WIPO (PCT)
Prior art keywords
pmo
led
variable current
panel
driving
Prior art date
Application number
PCT/KR2009/002915
Other languages
French (fr)
Korean (ko)
Other versions
WO2009148244A2 (en
Inventor
신현철
정성익
Original Assignee
(주)신코엠
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 (주)신코엠 filed Critical (주)신코엠
Publication of WO2009148244A2 publication Critical patent/WO2009148244A2/en
Publication of WO2009148244A3 publication Critical patent/WO2009148244A3/en

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
    • G09G3/2007—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
    • 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]
    • G09G3/3208—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] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3216—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] organic, e.g. using organic light-emitting diodes [OLED] using a passive matrix
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
    • H01L27/144—Devices controlled by radiation
    • H01L27/146—Imager structures
    • H01L27/14601—Structural or functional details thereof
    • H01L27/14609—Pixel-elements with integrated switching, control, storage or amplification elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof  ; Multistep manufacturing processes therefor
    • H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
    • H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
    • H01L29/70—Bipolar devices
    • H01L29/74—Thyristor-type devices, e.g. having four-zone regenerative action
    • H01L29/744—Gate-turn-off devices
    • H01L29/745—Gate-turn-off devices with turn-off by field effect
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0202—Addressing of scan or signal lines
    • G09G2310/0205—Simultaneous scanning of several lines in flat panels
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
    • H01L27/04—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being a semiconductor body
    • H01L27/10—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being a semiconductor body including a plurality of individual components in a repetitive configuration
    • H01L27/118—Masterslice integrated circuits
    • H01L27/11803—Masterslice integrated circuits using field effect technology
    • H01L27/11807—CMOS gate arrays
    • H01L2027/11868—Macro-architecture
    • H01L2027/11874—Layout specification, i.e. inner core region
    • H01L2027/11877—Avoiding clock-skew or clock-delay

Abstract

The present invention discloses a PMO LED driving circuit and a driving method, which reduce the size of a drive current to reduce power consumption and lengthen the life of a PMO LED. The PMO LED includes a PWM computing device and a line driver. The PWM computing device calculates a scale factor by using the present frame data, and computes a variable current quantity of a variable current source and a correction unit connection time used for switching the variable current source by using the scale factor. The line driver processes information on the horizontal line and the vertical line of a panel contained in the frame data in response to the variable current quantity and the correction unit connection time to drive the panel. The line driver bunches two horizontal lines of the panel into one and drives the panel in three steps. The method for driving a PMO LED includes a scale factor computing step, a variable current quantity and correction unit connection time computing step, and a PMO LED driving step.
PCT/KR2009/002915 2008-06-02 2009-06-02 Pmo led driving circuit and driving method WO2009148244A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2008-0051515 2008-06-02
KR1020080051515A KR100944494B1 (en) 2008-06-02 2008-06-02 Passive matrix organic light emitting diode driving circuit and driving method

Publications (2)

Publication Number Publication Date
WO2009148244A2 WO2009148244A2 (en) 2009-12-10
WO2009148244A3 true WO2009148244A3 (en) 2010-03-25

Family

ID=41398655

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2009/002915 WO2009148244A2 (en) 2008-06-02 2009-06-02 Pmo led driving circuit and driving method

Country Status (2)

Country Link
KR (1) KR100944494B1 (en)
WO (1) WO2009148244A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101712086B1 (en) 2010-08-20 2017-03-14 삼성디스플레이 주식회사 Display device and driving method thereof
US10297191B2 (en) 2016-01-29 2019-05-21 Samsung Display Co., Ltd. Dynamic net power control for OLED and local dimming LCD displays

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040160393A1 (en) * 2002-12-02 2004-08-19 Optrex Corporation Method for driving an organic electroluminescent display device
US20060022964A1 (en) * 2004-07-28 2006-02-02 Kim Chang O Removing crosstalk in an organic light-emitting diode display by adjusting display scan periods
US20080007496A1 (en) * 2006-07-06 2008-01-10 Lg Electronics Inc. Display device and method of driving a display device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100568591B1 (en) * 2003-09-03 2006-04-07 엘지전자 주식회사 Apparatus of electro-luminescence display device and driving method thereof
KR20050032319A (en) * 2003-10-01 2005-04-07 삼성에스디아이 주식회사 Field emission display and deriving method thereof
KR100578959B1 (en) * 2003-10-16 2006-05-12 삼성에스디아이 주식회사 Driving method of plasma display panel and plasma display device
KR100881227B1 (en) * 2007-01-12 2009-02-10 주식회사 인테그마 Apparatus for correcting crosstalk of passive matrix OLED

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040160393A1 (en) * 2002-12-02 2004-08-19 Optrex Corporation Method for driving an organic electroluminescent display device
US20060022964A1 (en) * 2004-07-28 2006-02-02 Kim Chang O Removing crosstalk in an organic light-emitting diode display by adjusting display scan periods
US20080007496A1 (en) * 2006-07-06 2008-01-10 Lg Electronics Inc. Display device and method of driving a display device

Also Published As

Publication number Publication date
KR20090125414A (en) 2009-12-07
KR100944494B1 (en) 2010-03-03
WO2009148244A2 (en) 2009-12-10

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