WO2007075517A3 - Electroluminescent display brightness level adjustment - Google Patents

Electroluminescent display brightness level adjustment Download PDF

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Publication number
WO2007075517A3
WO2007075517A3 PCT/US2006/048144 US2006048144W WO2007075517A3 WO 2007075517 A3 WO2007075517 A3 WO 2007075517A3 US 2006048144 W US2006048144 W US 2006048144W WO 2007075517 A3 WO2007075517 A3 WO 2007075517A3
Authority
WO
WIPO (PCT)
Prior art keywords
current
light emitting
image signal
regions
emitting elements
Prior art date
Application number
PCT/US2006/048144
Other languages
French (fr)
Other versions
WO2007075517A2 (en
Inventor
Michael Eugene Miller
Michael John Murdoch
John Edward Ludwicki
Original Assignee
Eastman Kodak Co
Michael Eugene Miller
Michael John Murdoch
John Edward Ludwicki
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 Eastman Kodak Co, Michael Eugene Miller, Michael John Murdoch, John Edward Ludwicki filed Critical Eastman Kodak Co
Priority to EP06847716.5A priority Critical patent/EP1964096B1/en
Priority to JP2008547374A priority patent/JP5443002B2/en
Publication of WO2007075517A2 publication Critical patent/WO2007075517A2/en
Publication of WO2007075517A3 publication Critical patent/WO2007075517A3/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
    • G09G3/22—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]
    • G09G3/3225—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 an active matrix
    • G09G3/3233—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 an active matrix with pixel circuitry controlling the current through the light-emitting element
    • 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
    • G09G2300/0421—Structural details of the set of electrodes
    • G09G2300/0426—Layout of electrodes and connections
    • 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
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0809—Several active elements per pixel in active matrix panels
    • G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
    • 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
    • G09G2320/0223—Compensation for problems related to R-C delay and attenuation in electrodes of matrix panels, e.g. in gate electrodes or on-substrate video signal electrodes
    • 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

Abstract

An electroluminescent display system, comprising: a display composed of an array of regions, current to each of the regions provided by a pair of power lines, each region including an array of light emitting elements; a pixel driving circuit for independently controlling current to each light-emitting element in response to an image signal, wherein the intensity of light output by the light emitting elements is dependent upon the current provided to each light emitting element; and a display driver for receiving an input image signal and generating a converted image signal for driving the light emitting elements wherein the driver analyzes the input signal to estimate the current that would result along at least one of the power lines providing current to each of the regions, if employed without further modification, and generates the converted signal as a function of the image signal and the estimated currents.
PCT/US2006/048144 2005-12-22 2006-12-18 Electroluminescent display brightness level adjustment WO2007075517A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP06847716.5A EP1964096B1 (en) 2005-12-22 2006-12-18 Electroluminescent display brightness level adjustment
JP2008547374A JP5443002B2 (en) 2005-12-22 2006-12-18 Display system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/316,443 2005-12-22
US11/316,443 US7764252B2 (en) 2005-12-22 2005-12-22 Electroluminescent display brightness level adjustment

Publications (2)

Publication Number Publication Date
WO2007075517A2 WO2007075517A2 (en) 2007-07-05
WO2007075517A3 true WO2007075517A3 (en) 2008-01-24

Family

ID=37943973

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/048144 WO2007075517A2 (en) 2005-12-22 2006-12-18 Electroluminescent display brightness level adjustment

Country Status (4)

Country Link
US (1) US7764252B2 (en)
EP (1) EP1964096B1 (en)
JP (1) JP5443002B2 (en)
WO (1) WO2007075517A2 (en)

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CN108269534B (en) * 2017-01-03 2020-06-23 昆山国显光电有限公司 AMOLED display device and driving method thereof
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CN109493809B (en) * 2017-09-12 2021-01-01 纬创资通（中山）有限公司 Display device and backlight driving method
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Also Published As

Publication number Publication date
EP1964096A2 (en) 2008-09-03
EP1964096B1 (en) 2015-10-14
JP5443002B2 (en) 2014-03-19
WO2007075517A2 (en) 2007-07-05
US7764252B2 (en) 2010-07-27
US20070146252A1 (en) 2007-06-28
JP2009521719A (en) 2009-06-04

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