WO2004038689A2 - Dispositif de visualisation d'images a recuperation d'energie capacitive - Google Patents
Dispositif de visualisation d'images a recuperation d'energie capacitive Download PDFInfo
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- WO2004038689A2 WO2004038689A2 PCT/EP2003/050732 EP0350732W WO2004038689A2 WO 2004038689 A2 WO2004038689 A2 WO 2004038689A2 EP 0350732 W EP0350732 W EP 0350732W WO 2004038689 A2 WO2004038689 A2 WO 2004038689A2
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- network
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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
- G09G3/2007—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
-
- 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
- G09G3/2018—Display of intermediate tones by time modulation using two or more time intervals
-
- 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
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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
-
- 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
- G09G2330/021—Power management, e.g. power saving
- G09G2330/023—Power management, e.g. power saving using energy recovery or conservation
Definitions
- the invention relates to an image display device comprising: - an image display panel comprising a first and a second network of electrodes serving a network of light-emitting cells, where each cell is supplied between an electrode of the first network and a second network electrode.
- the first network of electrodes generally corresponds to columns and the second network to lines; as supply means, a current or voltage generator is generally used; the control means generally comprise column and row drivers which serve to connect the supply means to the electrode networks.
- the distance separating the two arrays of electrodes is very small; at the level of each cell, this distance corresponds to the thickness of an organic electroluminescent layer which is commonly of the order of 0.1 ⁇ m; therefore, the electrical capacitance between the electrodes of the two networks is large and the intrinsic capacitance at the level of each cell is therefore high.
- Each image to be displayed is divided into pixels, themselves sub-divided into as many sub-pixels as there are primary colors; each sub-pixel is assigned light intensity data of the image to be displayed; to view an image, each sub-pixel of the image is assigned to a cell of the panel.
- control means are adapted: - to successively connect each electrode of the second network to one of the terminals of the supply means; these process steps correspond to the scanning of the lines of the panel; - And, during a connection sequence of an electrode of the second network, to simultaneously connect electrodes of the first network to the other terminal of the supply means.
- the duration of connection of each electrode of the first network or activation of the column driver depends on the light intensity data assigned to the cell supplied via this column, the duration of supply of a cell corresponds to the width d 'a voltage or current pulse, and we then say that the control of the panel is achieved by pulse width modulation, or is of PWM type ("Puise Width Modulation" in English).
- the document EP 1091340 describes a method of recovering capacitive energy which is limited: in fact, the energy originating from a first cell is only recovered for the benefit of another cell if the video signal to be assigned to this other cell is greater than the video signal assigned to the first cell; the disadvantage of this method is that, in the opposite case where the video signal is lower, the capacitive energy of the first cell is lost.
- the object of the invention is to recover capacitive energy much more completely than in the prior art; more specifically, the invention proposes to recover the capacitive energy of each cell of a row to re-inject it into the cell of the next row on the same column as a function of the image data of this cell.
- the subject of the invention is an image display device comprising: - an image display panel comprising a first network and a second network of electrodes which serve a network of cells, where each cell is supplied with power between an electrode of the first network and an electrode of the second network providing between them an intrinsic capacitance Ci,
- control means adapted to successively connect each electrode of the second network to one of the terminals of the supply means, and, during a connection sequence of an electrode of the second network, to simultaneously connect one or more or even all of the electrodes of the first network to the other terminal of the supply means, characterized in that the control means are adapted to be able, during each connection sequence of an electrode of the second network, to transfer to the cell supplied between each electrode of the first network and this electrode of the second network, the charge of the intrinsic capacities of the other cells connected to the same electrode of the first network.
- the first network generally corresponds to column electrodes and the second network to line electrodes; if G lines are counted, there are generally G cells connected to the same arbitrary electrode of the first network or column; the charge which is thus transferred to a cell at the intersection of a given row and column, is assumed to have been obviously accumulated during a sequence relating to a previous row during which the cell at the crossing of this previous row but of the same column was connected to the supply means.
- the panel supply means can be a voltage or current generator; they can include several generators each assigned to a group of electrodes.
- the subject of the invention is a device comprising a display panel, preferably organic electroluminescent with a passive matrix, comprising a network of columns and a network of electrode lines for supplying a network of cells and suitable control means. to successively connect each line electrode to one of the supply means terminals of this panel, and, during a connection sequence of a line electrode, to simultaneously connect one or more column electrodes to the other terminal supply means, and to be able to transfer to each cell to thus supply the charge of the intrinsic capacities of the cells connected to the same column electrode as this cell to be supplied.
- control means are adapted so that, during each connection sequence of an electrode of the second network, the transfer of charge via each of the electrodes of the first network is privileged at the expense of the connection of these electrodes to said means. 'food.
- each image to be displayed being divided into pixels or sub-pixels to which light intensity data are assigned, each cell of the panel being assigned to a pixel or sub-pixel of the images to be display
- the device comprises means for processing this data in order to be able, during each connection sequence of an electrode of the second network, to modulate the duration of connection t ' al of each electrode of the first network to said supply means and to modulate the charge transfer duration t ' ⁇ of the intrinsic capacities of the other cells connected to the same electrode of the first network, as a function of the light intensity data of the cell supplied between this electrode of the first network and this electrode of the second network.
- these processing means will therefore either modulate the duration of connection only, or modulate the duration of charge transfer only, or modulate both the duration of connection and the duration of charge transfer .
- the duration t ′ of charge transfer is maximized and the duration t ′ al of connection is minimized in order to best improve the efficiency of the device. It is the connection duration and / or the transfer duration which are therefore modulated as a function of the light intensity data; thus, preferably, the display device according to the invention implements a pulse width modulation method.
- the control of the panel is therefore carried out by modulation of the pulse duration or the width of electrical signals (“PWM” or “Puise Width Modulation” in English), as opposed to amplitude modulation (“PAM” or “Puise Amplitude Modulation” in English) as described for example in the document EP1091340 already cited, or in the document US6222323.
- PWM pulse duration or the width of electrical signals
- PAM amplitude modulation
- control means are adapted so that, during each connection sequence of an electrode of the second network, the connection of each electrode of the first network to the supply means is carried out, if necessary, at the end of the sequence and the transfer of charges is carried out, if necessary, at the start of the sequence. In this way, we ensure at best and we manage in a very simple way the recovery of capacitive energy.
- the device according to the invention is adapted so that: - if t L is the duration of each connection sequence of an electrode of the second network, - if Ci is the average value of the intrinsic capacity of each cell, and if the second network has G electrodes,
- the device according to the invention is adapted so that:
- R EL is the average electrical resistance of an activated cell
- the ratio t L / R EL .Ci is greater than 4.
- the discharge time of the intrinsic capacities is much smaller than the line time, which allows faster transfer and significant recovery of the capacitive energy; this condition also makes it possible to advantageously simplify the distribution between the “passive” supply of the cells by charge transfer and the traditional “active” supply by connection across the supply means.
- the cells of the panel are electroluminescent, and each comprise an organic electroluminescent layer; preferably, the thickness of this layer is less than or equal to 0.2 ⁇ m; such a small thickness results in high intrinsic capacities and high loads which it is particularly advantageous to be able to transfer according to the invention.
- FIG. 1 describes a display device according to an embodiment of the invention
- FIG. 2 represents a summary diagram of the supply of an electroluminescent cell of the device of FIG. 1
- FIG. 3 represents the current-voltage characteristic of a light emitting diode corresponding to the cell of FIG. 2,
- FIG. 4 represents the discharge of the intrinsic capacity of the cell of FIG. 2, and the charge increment corresponding to a time step of the analog-digital converter of the processing means of the device of FIG. 1,
- FIG. 5 shows the recovery of capacitive energy for the benefit of a cell of the device of Figure 1 which is then actively supplied to complete the required load, without the recovery period and the active supply period being cover
- FIG. 6 represents the partial and adapted recovery of the capacitive energy for the benefit of a cell of the device of FIG. 1 which is then not actively supplied
- FIG. 7 shows the partial recovery of capacitive energy for the benefit of a cell of the device of Figure 1 which is then actively supplied to complete the required charge, in the case where the recovery period and the supply period active overlap.
- the display device comprises:
- an image display panel 1 comprising a network X of anodes XX 2 , X3, X ⁇ ... arranged in columns and a network Y of cathodes arranged in lines Yi, Y 2 , Y 3 , Y ⁇ ... serving a two-dimensional network of light-emitting cells 11, where each cell is supplied between an anode (column) and a cathode (line).
- supply means 4 comprising on the one hand anode terminals and on the other hand cathode terminals connected to earth (not shown),
- - means for controlling the cells of this panel comprising a set 2 of column drivers for controlling the connection between the anodes and the anode terminals, a set 3 of line drivers for controlling the connection between the cathodes and the cathode terminals (here via the earth), and control means 5 of these drivers,
- the line drivers 3 have two positions: a position d, called activation, of connection to the ground where the corresponding line is therefore connected to the supply means 4 via the ground, and a position c2, called inactivation, for connection to a reverse voltage generator Vdd; the purpose of this reverse voltage generator Vdd is to block the light-emitting diodes of the panel to which it is connected; the voltage Vdd will therefore be chosen to be greater, in absolute value, than the voltage delivered by the supply means 4 which are connected to the column anodes.
- Each cell 11 of the panel comprises an organic electroluminescent layer (not shown) between the anode and the cathode which supply it; as this layer functions like a diode, it is represented by an EL diode in FIGS. 1 and 2; as shown in these figures, each cell has an intrinsic capacitance C A in parallel with this diode.
- each column driver 2 has three positions: the so-called activation position ai, where the column is connected to the supply means 4 delivering a supply voltage V a , the position a2 "at l 'air' where the column is therefore 'floating', and the position a3 called inactivation where the column is connected to a generator Vi of lower discharge limit;
- the total electrical intensity l d injected into cell 11 is equal to the sum of the intensity i EL crossing the diode of this cell and the intensity i c crossing all of the intrinsic capacitances in parallel on the same anode as this cell 11, that is G x Ci if G is the number of lines, so that we have:
- the intrinsic capacities are discharged to 85%; after a duration of 3 ⁇ , the intrinsic capacities are discharged to 95%.
- the display device here includes a data table (“Look Up Table” or LUT in English) which lists the total charge transferred Q ⁇ ⁇ [Ci.Vc (t) at each transfer instant t t from the start of dump.
- a data table (“Look Up Table” or LUT in English) which lists the total charge transferred Q ⁇ ⁇ [Ci.Vc (t) at each transfer instant t t from the start of dump.
- the data processing means of the images to be displayed are adapted as specified later to deduce the duration of positioning ai, a2, or a3 of each of the column drivers as a function of the intensity data. light of the pixels or sub-pixels corresponding to the cells of this line.
- FIG. 4 illustrates a comparison of the payload Q u of the intrinsic capacity and of the load increment Q e .
- Q ' EL Q' a + Q t , where Q ' a is the quantity of electricity possibly supplied by the supply means 4 during the period t' a ⁇ of connection to the supply means in addition to the quantity d electricity transferred from the connection time of the previous line Q t , originating from the discharge of the intrinsic capacities of the cells of the same column.
- the image data processing means are adapted to deduce the duration of positioning ai, a2, or a3 of each of the column drivers as a function of the light intensity data of the pixels or sub-pixels. corresponding to the cells of the activated line.
- durations t ' al and t' ⁇ are the durations during which the cell column driver is maintained respectively in position ai and in position a2.
- the column driver is then kept in position a2 for a period t j ⁇ . then in position a3 for the duration t'Lt ⁇ .
- the image data processing means make it possible to deduce the positioning times ai, a2, or a3 of each of the column drivers as a function of the light intensity data of the corresponding pixels or sub-pixels. to the cells of an activated line L ', and according to the usable charge Q u coming from the previous line L.
- the connection time t ′ al of each column electrode and / or the charge transfer time t ′ ⁇ via said column electrode is modulated as a function of the light intensity data of the cell supplied between this electrode of the first network and this electrode of the second network.
- V ⁇ OLED threshold voltage 4 V Current density for emission at 100 cd / m 2 : 0.4 mA / cm 2 average
- the invention takes significant interest as soon as the capacitive energy represents more than 40% of the energy consumed by a diode, therefore as soon as G x Ci> 40% x 0.2 t L / R EL .
- the invention also applies to panels whose electroluminescent layers are not organic.
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- 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)
- Electroluminescent Light Sources (AREA)
- Control Of El Displays (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MXPA05004147A MXPA05004147A (es) | 2002-10-28 | 2003-10-17 | Dispositivo para mostrar imagenes con recuperacion de energia capacitiva. |
EP03778341A EP1556848B1 (fr) | 2002-10-28 | 2003-10-17 | Dispositif de visualisation d'images a recuperation d'energie capacitive |
AU2003285353A AU2003285353A1 (en) | 2002-10-28 | 2003-10-17 | Image display device with capacitive energy recovery |
US10/532,259 US7965262B2 (en) | 2002-10-28 | 2003-10-17 | Display device with capacitive energy recovery |
KR1020057007126A KR100982962B1 (ko) | 2002-10-28 | 2003-10-17 | 용량성 에너지 복구 기능을 갖는 이미지 디스플레이 디바이스 |
DE60327454T DE60327454D1 (de) | 2002-10-28 | 2003-10-17 | Vorrichtung zur bildanzeige mit rückgewinnung von kapazitiver energie |
JP2004546041A JP4603360B2 (ja) | 2002-10-28 | 2003-10-17 | 容量性エネルギーの回復を有する画像表示装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0213979A FR2846454A1 (fr) | 2002-10-28 | 2002-10-28 | Dispositif de visualisation d'images a recuperation d'energie capacitive |
FR0213979 | 2002-10-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2004038689A2 true WO2004038689A2 (fr) | 2004-05-06 |
WO2004038689A3 WO2004038689A3 (fr) | 2004-05-27 |
Family
ID=32088444
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2003/050732 WO2004038689A2 (fr) | 2002-10-28 | 2003-10-17 | Dispositif de visualisation d'images a recuperation d'energie capacitive |
Country Status (10)
Country | Link |
---|---|
US (1) | US7965262B2 (fr) |
EP (1) | EP1556848B1 (fr) |
JP (1) | JP4603360B2 (fr) |
KR (1) | KR100982962B1 (fr) |
CN (1) | CN100437710C (fr) |
AU (1) | AU2003285353A1 (fr) |
DE (1) | DE60327454D1 (fr) |
FR (1) | FR2846454A1 (fr) |
MX (1) | MXPA05004147A (fr) |
WO (1) | WO2004038689A2 (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4517605B2 (ja) * | 2003-08-22 | 2010-08-04 | Tdk株式会社 | 画像表示装置およびその駆動方法 |
US8269798B2 (en) | 2007-07-18 | 2012-09-18 | Global Oled Technology Llc | Reduced power consumption in OLED display system |
DE102008024126A1 (de) * | 2008-05-19 | 2009-12-03 | X-Motive Gmbh | Verfahren und Treiber zum Ansteuern einer Passivmatrix-OLED-Anzeige |
JP4768039B2 (ja) * | 2009-03-02 | 2011-09-07 | パナソニック株式会社 | 表示駆動装置および表示装置 |
JP4735763B2 (ja) * | 2010-02-22 | 2011-07-27 | Tdk株式会社 | 画像表示装置およびその駆動方法 |
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EP1091340A2 (fr) * | 1999-10-05 | 2001-04-11 | Nec Corporation | Méthode et dispositif de commande d'un dispositif d'affichage à couche mince électroluminescente organique |
US6222323B1 (en) * | 1998-11-06 | 2001-04-24 | Matsushita Electric Industrial Co., Ltd. | Driving method of a display device employing electro-light-emitting elements and the same display device |
US6229267B1 (en) * | 1998-09-29 | 2001-05-08 | Pioneer Corporation | Display apparatus with capacitive light-emitting devices and method of driving the same |
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JP2002140037A (ja) * | 2000-11-01 | 2002-05-17 | Pioneer Electronic Corp | 発光パネルの駆動装置及び方法 |
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TW530293B (en) * | 2001-01-19 | 2003-05-01 | Solomon Systech Ltd | Driving system and method for electroluminescence |
US6765348B2 (en) * | 2001-01-26 | 2004-07-20 | Xerox Corporation | Electroluminescent devices containing thermal protective layers |
JP4659292B2 (ja) * | 2001-08-03 | 2011-03-30 | パイオニア株式会社 | 容量性発光素子表示パネルの駆動装置 |
WO2003034385A2 (fr) * | 2001-10-19 | 2003-04-24 | Clare Micronix Integrated Systems, Inc. | Systeme et procede de compensation du temps d'exposition pour la resistance de la ligne |
US6811896B2 (en) * | 2002-07-29 | 2004-11-02 | Xerox Corporation | Organic light emitting device (OLED) with thick (100 to 250 nanometers) porphyrin buffer layer |
-
2002
- 2002-10-28 FR FR0213979A patent/FR2846454A1/fr active Pending
-
2003
- 2003-10-17 DE DE60327454T patent/DE60327454D1/de not_active Expired - Lifetime
- 2003-10-17 CN CNB2003801013776A patent/CN100437710C/zh not_active Expired - Fee Related
- 2003-10-17 MX MXPA05004147A patent/MXPA05004147A/es active IP Right Grant
- 2003-10-17 AU AU2003285353A patent/AU2003285353A1/en not_active Abandoned
- 2003-10-17 US US10/532,259 patent/US7965262B2/en not_active Expired - Fee Related
- 2003-10-17 EP EP03778341A patent/EP1556848B1/fr not_active Expired - Lifetime
- 2003-10-17 JP JP2004546041A patent/JP4603360B2/ja not_active Expired - Fee Related
- 2003-10-17 WO PCT/EP2003/050732 patent/WO2004038689A2/fr active Application Filing
- 2003-10-17 KR KR1020057007126A patent/KR100982962B1/ko active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6229267B1 (en) * | 1998-09-29 | 2001-05-08 | Pioneer Corporation | Display apparatus with capacitive light-emitting devices and method of driving the same |
US6222323B1 (en) * | 1998-11-06 | 2001-04-24 | Matsushita Electric Industrial Co., Ltd. | Driving method of a display device employing electro-light-emitting elements and the same display device |
EP1091340A2 (fr) * | 1999-10-05 | 2001-04-11 | Nec Corporation | Méthode et dispositif de commande d'un dispositif d'affichage à couche mince électroluminescente organique |
Also Published As
Publication number | Publication date |
---|---|
KR20050073585A (ko) | 2005-07-14 |
US7965262B2 (en) | 2011-06-21 |
DE60327454D1 (de) | 2009-06-10 |
CN1729500A (zh) | 2006-02-01 |
MXPA05004147A (es) | 2005-08-03 |
AU2003285353A1 (en) | 2004-05-13 |
KR100982962B1 (ko) | 2010-09-17 |
JP4603360B2 (ja) | 2010-12-22 |
JP2006518859A (ja) | 2006-08-17 |
EP1556848B1 (fr) | 2009-04-29 |
EP1556848A2 (fr) | 2005-07-27 |
CN100437710C (zh) | 2008-11-26 |
FR2846454A1 (fr) | 2004-04-30 |
US20060125733A1 (en) | 2006-06-15 |
WO2004038689A3 (fr) | 2004-05-27 |
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