CA2523841C - Systeme et methode d'attaque pour afficheur matriciel actif a dispositif electroluminescent - Google Patents
Systeme et methode d'attaque pour afficheur matriciel actif a dispositif electroluminescent Download PDFInfo
- Publication number
- CA2523841C CA2523841C CA002523841A CA2523841A CA2523841C CA 2523841 C CA2523841 C CA 2523841C CA 002523841 A CA002523841 A CA 002523841A CA 2523841 A CA2523841 A CA 2523841A CA 2523841 C CA2523841 C CA 2523841C
- Authority
- CA
- Canada
- Prior art keywords
- terminal
- transistor
- pixel circuit
- display system
- bias
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 44
- 239000011159 matrix material Substances 0.000 title abstract description 4
- 239000003990 capacitor Substances 0.000 claims abstract description 56
- 229920001621 AMOLED Polymers 0.000 claims description 24
- 230000036962 time dependent Effects 0.000 claims description 10
- 239000010409 thin film Substances 0.000 claims description 4
- 230000003213 activating effect Effects 0.000 claims 7
- 238000005516 engineering process Methods 0.000 description 26
- 238000010586 diagram Methods 0.000 description 20
- 101100422768 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) SUL2 gene Proteins 0.000 description 14
- 101100191136 Arabidopsis thaliana PCMP-A2 gene Proteins 0.000 description 12
- 101100048260 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) UBX2 gene Proteins 0.000 description 12
- 229910021417 amorphous silicon Inorganic materials 0.000 description 11
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 9
- 229910021424 microcrystalline silicon Inorganic materials 0.000 description 8
- 229910021423 nanocrystalline silicon Inorganic materials 0.000 description 8
- 229920005591 polysilicon Polymers 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 239000004065 semiconductor Substances 0.000 description 8
- 230000000295 complement effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 241001270131 Agaricus moelleri Species 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003071 parasitic effect Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 102100030341 Ethanolaminephosphotransferase 1 Human genes 0.000 description 1
- 101100172525 Homo sapiens SELENOI gene Proteins 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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
- 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
- G09G3/3241—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 the current through the light-emitting element being set using a data current provided by the data driver, e.g. by using a two-transistor current mirror
-
- 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
-
- 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
- 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
-
- 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
- G09G2300/0866—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 by means of changes in the pixel supply voltage
-
- 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
- G09G2310/0251—Precharge or discharge of pixel before applying new pixel voltage
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002523841A CA2523841C (fr) | 2004-11-16 | 2005-11-15 | Systeme et methode d'attaque pour afficheur matriciel actif a dispositif electroluminescent |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002490848A CA2490848A1 (fr) | 2004-11-16 | 2004-11-16 | Circuit de pixels et methode de commande pour programmation compensee rapide d'ecrans amoled |
| CA2,490,848 | 2004-11-16 | ||
| CA 2503283 CA2503283A1 (fr) | 2005-04-08 | 2005-04-08 | Methode de programmation par courants echelonnes pour afficheurs amoled |
| CA2,503,283 | 2005-04-08 | ||
| CA002523841A CA2523841C (fr) | 2004-11-16 | 2005-11-15 | Systeme et methode d'attaque pour afficheur matriciel actif a dispositif electroluminescent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2523841A1 CA2523841A1 (fr) | 2006-01-29 |
| CA2523841C true CA2523841C (fr) | 2007-08-07 |
Family
ID=35767573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002523841A Expired - Fee Related CA2523841C (fr) | 2004-11-16 | 2005-11-15 | Systeme et methode d'attaque pour afficheur matriciel actif a dispositif electroluminescent |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2523841C (fr) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8860636B2 (en) | 2005-06-08 | 2014-10-14 | Ignis Innovation Inc. | Method and system for driving a light emitting device display |
| US8994617B2 (en) | 2010-03-17 | 2015-03-31 | Ignis Innovation Inc. | Lifetime uniformity parameter extraction methods |
| US9030506B2 (en) | 2009-11-12 | 2015-05-12 | Ignis Innovation Inc. | Stable fast programming scheme for displays |
| US9058775B2 (en) | 2006-01-09 | 2015-06-16 | Ignis Innovation Inc. | Method and system for driving an active matrix display circuit |
| US9093028B2 (en) | 2009-12-06 | 2015-07-28 | Ignis Innovation Inc. | System and methods for power conservation for AMOLED pixel drivers |
| US9153172B2 (en) | 2004-12-07 | 2015-10-06 | Ignis Innovation Inc. | Method and system for programming and driving active matrix light emitting device pixel having a controllable supply voltage |
| US9269322B2 (en) | 2006-01-09 | 2016-02-23 | Ignis Innovation Inc. | Method and system for driving an active matrix display circuit |
| US9336717B2 (en) | 2012-12-11 | 2016-05-10 | Ignis Innovation Inc. | Pixel circuits for AMOLED displays |
| US9351368B2 (en) | 2013-03-08 | 2016-05-24 | Ignis Innovation Inc. | Pixel circuits for AMOLED displays |
| US9370075B2 (en) | 2008-12-09 | 2016-06-14 | Ignis Innovation Inc. | System and method for fast compensation programming of pixels in a display |
| US9489891B2 (en) | 2006-01-09 | 2016-11-08 | Ignis Innovation Inc. | Method and system for driving an active matrix display circuit |
| US10192485B2 (en) | 2016-01-04 | 2019-01-29 | Boe Technology Group Co., Ltd. | Pixel compensation circuit and AMOLED display device |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2383721B1 (fr) | 2004-11-16 | 2015-04-08 | Ignis Innovation Inc. | Système et procédé de commande pour affichage de dispositif électroluminescent à matrice active |
| GB2453372A (en) * | 2007-10-05 | 2009-04-08 | Cambridge Display Tech Ltd | A pixel driver circuit for active matrix driving of an organic light emitting diode (OLED) |
| TW200949807A (en) * | 2008-04-18 | 2009-12-01 | Ignis Innovation Inc | System and driving method for light emitting device display |
| CA2637343A1 (fr) | 2008-07-29 | 2010-01-29 | Ignis Innovation Inc. | Amelioration de pilote de source d'affichage |
| US9886899B2 (en) | 2011-05-17 | 2018-02-06 | Ignis Innovation Inc. | Pixel Circuits for AMOLED displays |
| US20140368491A1 (en) | 2013-03-08 | 2014-12-18 | Ignis Innovation Inc. | Pixel circuits for amoled displays |
| EP2715711A4 (fr) | 2011-05-28 | 2014-12-24 | Ignis Innovation Inc | Système et procédé de programmation de compensation rapide de pixels dans un écran d'affichage |
| US9747834B2 (en) | 2012-05-11 | 2017-08-29 | Ignis Innovation Inc. | Pixel circuits including feedback capacitors and reset capacitors, and display systems therefore |
| US9786223B2 (en) | 2012-12-11 | 2017-10-10 | Ignis Innovation Inc. | Pixel circuits for AMOLED displays |
| US9721505B2 (en) | 2013-03-08 | 2017-08-01 | Ignis Innovation Inc. | Pixel circuits for AMOLED displays |
| CA2894717A1 (fr) | 2015-06-19 | 2016-12-19 | Ignis Innovation Inc. | Caracterisation d'un dispositif optoelectronique au moyen d'une ligne de sens partage |
| CA2873476A1 (fr) | 2014-12-08 | 2016-06-08 | Ignis Innovation Inc. | Architecture d'affichage de pixels intelligents |
| CA2886862A1 (fr) | 2015-04-01 | 2016-10-01 | Ignis Innovation Inc. | Ajustement de la luminosite d'affichage en vue d'eviter la surchauffe ou le vieillissement accelere |
| CA2898282A1 (fr) | 2015-07-24 | 2017-01-24 | Ignis Innovation Inc. | Etalonnage hybride de sources de courant destine a des afficheurs a tension polarisee par courant programmes |
| US10657895B2 (en) | 2015-07-24 | 2020-05-19 | Ignis Innovation Inc. | Pixels and reference circuits and timing techniques |
| US10373554B2 (en) | 2015-07-24 | 2019-08-06 | Ignis Innovation Inc. | Pixels and reference circuits and timing techniques |
| CA2908285A1 (fr) | 2015-10-14 | 2017-04-14 | Ignis Innovation Inc. | Pilote comportant une structure de pixel a plusieurs couleurs |
-
2005
- 2005-11-15 CA CA002523841A patent/CA2523841C/fr not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9153172B2 (en) | 2004-12-07 | 2015-10-06 | Ignis Innovation Inc. | Method and system for programming and driving active matrix light emitting device pixel having a controllable supply voltage |
| US9330598B2 (en) | 2005-06-08 | 2016-05-03 | Ignis Innovation Inc. | Method and system for driving a light emitting device display |
| US8860636B2 (en) | 2005-06-08 | 2014-10-14 | Ignis Innovation Inc. | Method and system for driving a light emitting device display |
| US9489891B2 (en) | 2006-01-09 | 2016-11-08 | Ignis Innovation Inc. | Method and system for driving an active matrix display circuit |
| US9058775B2 (en) | 2006-01-09 | 2015-06-16 | Ignis Innovation Inc. | Method and system for driving an active matrix display circuit |
| US9269322B2 (en) | 2006-01-09 | 2016-02-23 | Ignis Innovation Inc. | Method and system for driving an active matrix display circuit |
| US9370075B2 (en) | 2008-12-09 | 2016-06-14 | Ignis Innovation Inc. | System and method for fast compensation programming of pixels in a display |
| US9030506B2 (en) | 2009-11-12 | 2015-05-12 | Ignis Innovation Inc. | Stable fast programming scheme for displays |
| US9262965B2 (en) | 2009-12-06 | 2016-02-16 | Ignis Innovation Inc. | System and methods for power conservation for AMOLED pixel drivers |
| US9093028B2 (en) | 2009-12-06 | 2015-07-28 | Ignis Innovation Inc. | System and methods for power conservation for AMOLED pixel drivers |
| US8994617B2 (en) | 2010-03-17 | 2015-03-31 | Ignis Innovation Inc. | Lifetime uniformity parameter extraction methods |
| US9336717B2 (en) | 2012-12-11 | 2016-05-10 | Ignis Innovation Inc. | Pixel circuits for AMOLED displays |
| US9351368B2 (en) | 2013-03-08 | 2016-05-24 | Ignis Innovation Inc. | Pixel circuits for AMOLED displays |
| US10192485B2 (en) | 2016-01-04 | 2019-01-29 | Boe Technology Group Co., Ltd. | Pixel compensation circuit and AMOLED display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2523841A1 (fr) | 2006-01-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2523841C (fr) | Systeme et methode d'attaque pour afficheur matriciel actif a dispositif electroluminescent | |
| US7889159B2 (en) | System and driving method for active matrix light emitting device display | |
| US10555398B2 (en) | System and driving method for light emitting device display | |
| US8497825B2 (en) | Voltage programmed pixel circuit, display system and driving method thereof | |
| US7800565B2 (en) | Method and system for programming and driving active matrix light emitting device pixel | |
| CN101111880B (zh) | 用于主动矩阵发光器件显示器的系统和驱动方法 | |
| CA2531719C (fr) | Circuit a pixels programme par tension, systeme d'affichage faisant appel a ce circuit et methode d'attaque connexe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed | ||
| MKLA | Lapsed |
Effective date: 20121115 |