WO2005015530A1 - Electroluminescent display devices - Google Patents
Electroluminescent display devices Download PDFInfo
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- WO2005015530A1 WO2005015530A1 PCT/IB2004/002582 IB2004002582W WO2005015530A1 WO 2005015530 A1 WO2005015530 A1 WO 2005015530A1 IB 2004002582 W IB2004002582 W IB 2004002582W WO 2005015530 A1 WO2005015530 A1 WO 2005015530A1
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- WO
- WIPO (PCT)
- Prior art keywords
- pixel
- data
- light
- display
- row
- Prior art date
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Classifications
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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
- G09G3/22—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
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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
- G09G3/22—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
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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
- G09G3/22—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]
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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
- G09G3/22—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]
- G09G3/3275—Details of drivers for data electrodes
- G09G3/3291—Details of drivers for data electrodes in which the data driver supplies a variable data voltage for setting the current through, or the voltage across, the light-emitting elements
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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
- 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
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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
- 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
- G09G2300/0819—Several active elements per pixel in active matrix panels used for counteracting undesired variations, e.g. feedback or autozeroing
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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
- 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
- G09G2300/0852—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor being a dynamic memory with more than one capacitor
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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
- 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
- G09G2300/0861—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor with additional control of the display period without amending the charge stored in a pixel memory, e.g. by means of additional select electrodes
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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
- 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
- G09G2300/088—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 using a non-linear two-terminal element
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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
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0243—Details of the generation of driving signals
- G09G2310/0245—Clearing or presetting the whole screen independently of waveforms, e.g. on power-on
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0285—Improving the quality of display appearance using tables for spatial correction of display data
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/029—Improving the quality of display appearance by monitoring one or more pixels in the display panel, e.g. by monitoring a fixed reference pixel
- G09G2320/0295—Improving the quality of display appearance by monitoring one or more pixels in the display panel, e.g. by monitoring a fixed reference pixel by monitoring each display pixel
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/04—Maintaining the quality of display appearance
- G09G2320/043—Preventing or counteracting the effects of ageing
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/04—Maintaining the quality of display appearance
- G09G2320/043—Preventing or counteracting the effects of ageing
- G09G2320/045—Compensation of drifts in the characteristics of light emitting or modulating elements
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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
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
- G09G2360/145—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen
- G09G2360/147—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen the originated light output being determined for each pixel
- G09G2360/148—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen the originated light output being determined for each pixel the light being detected by light detection means within each pixel
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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
- G09G3/2007—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
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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
- G09G3/22—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]
Definitions
- the device may further comprise a memory structure having a first memory area for storing threshold voltage information for the drive transistor of each pixel and having a second memory area for storing ageing/mobility information for each pixel.
- a pixel circuit includes an EL display element, a current source (drive transistor), a memory element, and a switch allowing the pixel to be addressed with a data signal, these components providing a conventional, basic, active matrix pixel circuit and the minimum required for active matrix operation.
- the circuit then may further include a photosensitive device, for example a photodiode or phototransistor, an associated memory element (capacitor) and a further switch.
- the material comprises a polymer LED material, although other organic electroluminescent materials, such as low molecular weight materials, could be used.
- the display elements of the array are carried, together with their associated active matrix circuitry, on the surface of an insulating substrate.
- the substrate is of transparent material, for example glass, and either the cathodes or anodes of the display elements 20 are formed of a transparent conductive material, such as ITO, so that light generated by the electroluminescent layer is transmitted through these electrodes.
- suitable organic conjugated polymer materials which can be used for the EL material are described in WO 96/36959.
- Typical examples of other, low molecular weight, organic materials are described in EP-A-0717446.
- Such read out would be for a row of pixels at a time, with the stored charges being read out for each row in sequence following one of the plain image fields, and then again following the next plain image field.
- the mobility and the threshold voltage of the drive TFTs 22 of the pixel array can be calculated, as will be described in detail below.
- this operation would only need to be performed very occasionally or possibly only at the time of manufacturing the device.
- the device may be arranged to be operated with a threshold/mobility corrected plain field image and the sensed charge again read out.
- Figure 5 illustrates a modified form of the pixel circuit of Figure 3, in which a phototransistor 50 is used as a photosensitive device rather than the photodiode 40, the gate of the phototransistor 50 being coupled to the anode of the display element 20.
- the switches 45 are of opposite conductivity (p type) to the switches 36 (n type).
- K is a constant which takes into account the frame period and the photodiode efficiency, which are effectively constant.
- the equations include a term which is the product of the transistor mobility and the LED efficiency, which is the "apparent mobility” discussed above. This apparent mobility is essentially representative of the combined effects of LED ageing and transistor mobility variations.
- the photo-sensor integrates over many frames, and a larger feedback signal can be obtained than for a single frame measurement.
- the drive system can accurately predict the charge being stored on the pixels in row "n", because the system knows the efficiency of the photo- sensors and the brightness of each pixel on the row for all the frames that have passed since it was reset.
- the drive system determines that a pixel in row "n” will become saturated after the next frame (using the data for the following frame) it sends a read-out request. This saturation represents full charging or discharging of the photo- sensor storage capacitor.
- the row "n" is then subject to a read-out operation.
- This monitoring scheme requires a resetting and read out pulse for one row of pixels at a time and at intervals of a number of frames.
- the read out operation can be carried out during the field blanking period between successive fields, so that the readout operation does not need to have any impact on the drive scheme timing. This is made possible by requiring only a single row pulse during the field blanking period, and feedback data is collected from different rows during different blanking periods. However, it is not essential to read-out in the field blanking period. The readout operation is short, and therefore could be done at other times, depending on the drive scheme.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/566,758 US7911464B2 (en) | 2003-08-08 | 2004-07-30 | Electroluminescent display devices |
EP04744219A EP1654720A1 (en) | 2003-08-08 | 2004-07-30 | Electroluminescent display devices |
JP2006522441A JP2007501953A (en) | 2003-08-08 | 2004-07-30 | Electroluminescent display device |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0318613.7 | 2003-08-08 | ||
GBGB0318613.7A GB0318613D0 (en) | 2003-08-08 | 2003-08-08 | Electroluminescent display devices |
GBGB0405804.6A GB0405804D0 (en) | 2003-08-08 | 2004-03-16 | Electroluminescent display devices |
GB0405804.6 | 2004-03-16 |
Publications (1)
Publication Number | Publication Date |
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WO2005015530A1 true WO2005015530A1 (en) | 2005-02-17 |
Family
ID=34137752
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2004/002582 WO2005015530A1 (en) | 2003-08-08 | 2004-07-30 | Electroluminescent display devices |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1654720A1 (en) |
JP (1) | JP2007501953A (en) |
KR (1) | KR20060064614A (en) |
WO (1) | WO2005015530A1 (en) |
Cited By (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1752955A1 (en) * | 2005-08-10 | 2007-02-14 | Samsung SDI Co., Ltd. | Data driver, organic light emitting display device using the same, and method of driving the organic light emitting display device |
EP1785979A3 (en) * | 2005-11-14 | 2007-07-18 | Sony Corporation | Display apparatus and driving method thereof |
JP2008046617A (en) * | 2006-08-11 | 2008-02-28 | Toppoly Optoelectronics Corp | System and method for reducing mura deffect |
EP1940161A2 (en) * | 2006-12-27 | 2008-07-02 | Samsung SDI Co., Ltd. | Ambient light sensing circuit and flat panel display including ambient light sensing circuit |
CN100414590C (en) * | 2005-06-14 | 2008-08-27 | 友达光电股份有限公司 | Display faceplate |
EP2026319A1 (en) * | 2007-07-27 | 2009-02-18 | Samsung Mobile Display Co., Ltd. | Organic light emitting display and method of driving the same |
EP2028639A2 (en) | 2007-08-23 | 2009-02-25 | Samsung Mobile Display Co., Ltd. | Organic light emitting display and driving method thereof |
EP2093749A2 (en) | 2008-02-22 | 2009-08-26 | LG Display Co., Ltd. | Organic light emitting diode display and method of driving the same |
US7652663B2 (en) | 2005-05-31 | 2010-01-26 | Au Optronics Corp. | Display panel and operating method therefor |
US7696965B2 (en) | 2006-06-16 | 2010-04-13 | Global Oled Technology Llc | Method and apparatus for compensating aging of OLED display |
US7719494B2 (en) | 2006-04-14 | 2010-05-18 | Au Optronics Corporation | Brightness adjustment circuit and electroluminescent display using the same |
US7812800B2 (en) | 2004-09-22 | 2010-10-12 | Tpo Displays Corp. | Design Approach and panel and electronic device utilizing the same |
CN101887690A (en) * | 2009-05-12 | 2010-11-17 | 索尼公司 | The method of display device, control light detection operation |
WO2011022193A1 (en) * | 2009-08-20 | 2011-02-24 | Global Oled Technology Llc | Fault detection in electroluminescent displays |
US8242989B2 (en) | 2008-01-18 | 2012-08-14 | Samsung Mobile Display Co., Ltd. | Organic light emitting display and driving method thereof |
CN103927973A (en) * | 2013-12-25 | 2014-07-16 | 上海中航光电子有限公司 | Display panel and pixel driving method thereof |
CN105046247A (en) * | 2015-08-31 | 2015-11-11 | 京东方科技集团股份有限公司 | Surface structure identification unit and circuit, identification method and electronic device |
JP2017182068A (en) * | 2016-03-30 | 2017-10-05 | モトローラ モビリティ エルエルシーMotorola Mobility Llc | Embedded active matrix organic light emitting diode (amoled) fingerprint sensor and self-compensating amoled |
EP3327711A1 (en) * | 2016-11-29 | 2018-05-30 | LG Display Co., Ltd. | External compensation for a display device and method of driving the same |
WO2018201569A1 (en) * | 2017-05-05 | 2018-11-08 | 惠科股份有限公司 | Adjusting method and device for gate off voltage and display device |
CN112334782A (en) * | 2018-07-03 | 2021-02-05 | 脸谱科技有限责任公司 | Testing micro Light Emitting Diodes (LEDs) using probe pads |
WO2021150249A1 (en) * | 2020-01-24 | 2021-07-29 | Google Llc | Display burn-in compensation |
CN113223443A (en) * | 2020-01-17 | 2021-08-06 | 厦门凌阳华芯科技有限公司 | Multi-pixel LED driving chip and LED display screen |
CN113223450A (en) * | 2021-05-14 | 2021-08-06 | 北京京东方光电科技有限公司 | Backlight module based on micro light-emitting diode unit and display panel |
US11335708B2 (en) | 2017-11-23 | 2022-05-17 | Semiconductor Energy Laboratory Co., Ltd. | Display device having a plurality of thin film transistors per pixel |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100801375B1 (en) * | 2006-06-13 | 2008-02-11 | 한양대학교 산학협력단 | Organic electro-luminescent display panel and driving method for the same |
JP5010949B2 (en) * | 2007-03-07 | 2012-08-29 | 株式会社ジャパンディスプレイイースト | Organic EL display device |
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JP2007501953A (en) | 2007-02-01 |
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