[go: up one dir, main page]

DE10305870A1 - Digital controllable matrix element for preparation of light emitting diodes (LED) useful in pixel electronics, and in electronic image representation based on polymers, silicon, or organic LED - Google Patents

Digital controllable matrix element for preparation of light emitting diodes (LED) useful in pixel electronics, and in electronic image representation based on polymers, silicon, or organic LED Download PDF

Info

Publication number
DE10305870A1
DE10305870A1 DE10305870A DE10305870A DE10305870A1 DE 10305870 A1 DE10305870 A1 DE 10305870A1 DE 10305870 A DE10305870 A DE 10305870A DE 10305870 A DE10305870 A DE 10305870A DE 10305870 A1 DE10305870 A1 DE 10305870A1
Authority
DE
Germany
Prior art keywords
light
emitting diodes
pixel
under
matrix
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.)
Withdrawn
Application number
DE10305870A
Other languages
German (de)
Inventor
Hans Baer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE10305870A priority Critical patent/DE10305870A1/en
Publication of DE10305870A1 publication Critical patent/DE10305870A1/en
Withdrawn legal-status Critical Current

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]
    • 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
    • G09G2310/04—Partial updating of the display screen
    • 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
    • G09G3/2074—Display of intermediate tones using sub-pixels
    • 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
    • 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]
    • G09G3/3266—Details of drivers for scan 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
    • 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
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L25/00—Assemblies consisting of a plurality of semiconductor or other solid state devices
    • H01L25/03—Assemblies consisting of a plurality of semiconductor or other solid state devices all the devices being of a type provided for in a single subclass of subclasses H10B, H10F, H10H, H10K or H10N, e.g. assemblies of rectifier diodes
    • H01L25/04—Assemblies consisting of a plurality of semiconductor or other solid state devices all the devices being of a type provided for in a single subclass of subclasses H10B, H10F, H10H, H10K or H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
    • H01L25/075—Assemblies consisting of a plurality of semiconductor or other solid state devices all the devices being of a type provided for in a single subclass of subclasses H10B, H10F, H10H, H10K or H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H10H20/00
    • H01L25/0756—Stacked arrangements of devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
    • H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
    • H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
    • H10H20/80—Constructional details
    • H10H20/81—Bodies
    • H10H20/813—Bodies having a plurality of light-emitting regions, e.g. multi-junction LEDs or light-emitting devices having photoluminescent regions within the bodies
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
    • H10H29/00—Integrated devices, or assemblies of multiple devices, comprising at least one light-emitting semiconductor element covered by group H10H20/00
    • H10H29/10—Integrated devices comprising at least one light-emitting semiconductor component covered by group H10H20/00
    • H10H29/14—Integrated devices comprising at least one light-emitting semiconductor component covered by group H10H20/00 comprising multiple light-emitting semiconductor components
    • H10H29/142—Two-dimensional arrangements, e.g. asymmetric LED layout
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
    • H10K50/14—Carrier transporting layers
    • H10K50/15—Hole transporting layers
    • H10K50/157—Hole transporting layers between the light-emitting layer and the cathode
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
    • H10K50/19—Tandem OLEDs
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/805—Electrodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

In aktiven Matrix-Displays verwendete Leuchtdioden werden bisher durch spezielle Pixelelektronik angesteuert, die aufwändig in die Matrix integriert werden musste. Diese Pixelelektronik wird zumeist mit einer Anzahl von TFT-Transistoren realisiert. Ziel war es, auf diese Pixelelektronik gänzlich verzichten zu können, um den Herstellungsprozess deutlich zu vereinfachen. DOLLAR A Die Erfindung sieht vor, die aktiven Elemente mit in die Leuchtdiode zu integrieren. Dieses konnte gelingen, indem diese Leuchtdioden so ausgelegt werden, dass sie steuerbar betrieben werden können. Mit diesen digital steuerbaren Leuchtdioden mit zwei Steuerelektroden ist es nun möglich, mittels x- und y-line-Selektion den Leuchtzustand der Diode ein- bzw. auszuschalten. Eine Darstellung von unterschiedlichen Grauwerten bzw. Farbwerten in einem Pixel eines Matrix-Displays muss nun ausschließlich digital erfolgen und geschieht bitweise in Subpixeln, deren Flächen der Bitwertigkeit entsprechen. Die Ansteuerung der Subpixel erfolgt direkt durch die digitalen RGB-Signale, wodurch sich eine Konvertierung von zumeist digitalen Informationssignalen in analoge Pixel-Darstellung erübrigt. DOLLAR A Die Ansteuerungselektronik kann wie bei Passiv-Matrix-Displays ausschließlich an den Rändern der Matrix platziert werden. DOLLAR A Die digital steuerbaren Leuchtdioden eignen sich besonders für die Herstellung von Leuchtdioden-Matrix-Displays auf Polymer- oder organischer Basis, da eine schnelle Ansteuerelektronik auf Silizium-Basis ...Light emitting diodes used in active matrix displays have hitherto been activated by special pixel electronics which had to be integrated into the matrix in a complex manner. This pixel electronics is usually realized with a number of TFT transistors. The goal was to be able to completely dispense with this pixel electronics in order to simplify the manufacturing process significantly. DOLLAR A The invention provides to integrate the active elements in the light emitting diode. This could be achieved by designing these light-emitting diodes so that they can be operated controllably. With these digitally controllable light-emitting diodes with two control electrodes, it is now possible to switch on or off the lighted state of the diode by means of x and y-line selection. A representation of different gray values or color values in a pixel of a matrix display must now be exclusively digital and is done bit by bit in subpixels whose areas correspond to the bit value. The subpixels are controlled directly by the digital RGB signals, which eliminates the need to convert mostly digital information signals into analogue pixel representations. DOLLAR A As with passive matrix displays, the control electronics can only be placed at the edges of the matrix. DOLLAR A The digitally controllable light-emitting diodes are particularly suitable for the production of light-emitting diode matrix displays on polymer or organic basis, as a fast control electronics based on silicon ...

Description

Die Erfindung betrifft ein Display mit einer aktiven Leuchtdioden-Matrix zur elektronischen Bilddarstellung auf Basis von Polymere-, Silizium- oder organischen LEDs.The invention relates to a display with an active light-emitting diode matrix for electronic image display based on polymer, silicon or organic LEDs.

Die Erfindung betrifft ferner die ausschließlich digitale Ansteuerung der Pixelelemente in der aktiven Display-Matrix.The invention further relates to exclusively digital control of the pixel elements in the active display matrix.

Herkömmliche, aktive Leuchtdioden-Matrixdisplays zur elektronischen Bilddarstellung brauchen für jedes Pixel in der Matrix neben der eigentlichen Leuchtdiode auch entsprechende Ansteuerelektronik, die z.B. mit TFT-Transistoren mit der Diode zusammen auf einem Träger (Folie, Glas o.ä.) aufgebracht sein muß. Für die Ansteuerung ist wegen der notwendigen Schaltgeschwindigkeiten gegenwärtig noch der Einsatz von Silizium nötig, was den Herstellungsprozess insbesondere für OLED- oder PLED-Displays erheblich erschwert [1,2,3].Conventional, Active Light Emitting Diode Matrix Displays to need electronic imaging for every pixel in the matrix in addition to the actual LED also corresponding control electronics, the e.g. with TFT transistors with the diode together on a support (foil, Glass or similar) must be applied. For the Control is still present because of the necessary switching speeds the use of silicon is necessary what the manufacturing process especially for OLED or PLED displays considerably more difficult [1,2,3].

Die Pixeldarstellung mit unterschiedlichen Helligkeitsstufen (Grauwerten) erfolgt dabei entweder analog mit Hold-Schaltungen oder aber im Zeitraster gepulst bzw. pulsbreitenmoduliert. Die analoge Darstellung erfordert darüber hinaus zumeist zusätzliche Elektronik zur temperaturunabhängigen Stabilisierung des Signals, die gepulste Darstellung erfordert dagegen deutlich schnellere Schaltelemente – beides ist in der Herstellung aufwändig und teuer.The pixel display with different brightness levels (Gray values) takes place either analogously with hold circuits or pulsed in the time grid or pulse width modulated. The analogue representation requires it In addition, mostly additional Electronics for temperature-independent Stabilization of the signal, the pulsed representation requires it significantly faster switching elements - both are in production costly and expensive.

Um diese Probleme zu beseitigen sieht die im Patentanspruch 1 angegebene Erfindung vor, statt der heute verwendeten 2- oder 3-Schicht-Leuchtdioden eines Displays digital steuerbare 4-(oder mehr)-Schicht-Leuchtdioden (funktionell ähnlich den vorwiegend in der Starkstromtechnik verwendeten Thyristoren, bzw. den GTOs) einzusetzen.To eliminate these problems looks the specified in claim 1 invention, instead of today used two or three-layer LEDs of a display digital controllable 4- (or more) -layer LEDs (functionally similar to those predominantly used in power engineering thyristors, or the GTOs) use.

Die Matrix-Pixel werden dann nur noch digital, den Informationsbits entsprechend, und dauerhaft (d.h. eine Änderung im Pixel-Status ändert sich nur bei Informationsänderung) dargestellt, und gleichzeitig wird die Ansteuerungselektronik ausschließlich auf die X-Y-Ränder der Display-Matrix gelegt.The matrix pixels are then only still digital, corresponding to the information bits, and persistent (i.e. a change in pixel status changes only with change of information) shown, and at the same time the control electronics is exclusively on the X-Y edges the display matrix.

Mit diesen digital steuerbaren Leuchtdioden ist eine – wie im Patentanspruch 2 angegeben – direkte Darstellung von digitalen Signalen möglich. Um die unterschiedlichen Helligkeitsstufen darstellen zu können, ist die Aufteilung der Pixel in Subpixel entsprechend der Bit-Anzahl vorzunehmen und die Größe der lichtemittierenden Flächen der Subpixel-Dioden den entsprechenden Bitwertigkeiten anzupassen.With these digitally controllable light-emitting diodes is one - like specified in claim 2 - direct Display of digital signals possible. To the different ones To be able to represent brightness levels, the division of the Make pixels in sub-pixels according to the number of bits and the Size of the light-emitting surfaces adapt the subpixel diodes to the corresponding bit weights.

Die Anzeige erfolgt damit ausschließlich digital; eine Umsetzung der üblicherweise in heutigen elektronischen Geräten verwendeten digitalen Signale in analoge oder eine Umsetzung der Signale in zeitgerasterte Signale entfällt gänzlich.The display is thus exclusively digital; an implementation of the customary in today's electronic devices used digital signals in analog or an implementation of the Signals in time-scanned signals are completely eliminated.

Die Ansteuerungselektronik ist auf eine reine X-Y-Ansteuerung beschränkt, die wie bei Passiv-Matrix-Displays am Rande der Matrix untergebracht wird. Die aktiven Elemente einer nach wie vor aktiven Display-Matrix sind damit in die Dioden selber integriert und es werden keine zusätzlichen Elemente benötigt.The control electronics is on a pure X-Y control limited, as with passive matrix displays is housed on the edge of the matrix. The active elements of a still active display matrix are thus in the diodes themselves integrated and no additional elements are needed.

Ein weiterer Vorteil ist, dass jedes Subpixel bzw. Pixel in seinen Helligkeitswerten konstant eingeschaltet bleibt, bis der Informationszustand sich ändert. Durch diese speichernde Eigenschaft der Subpixeldioden ist die Bilddarstellung vollkommen flimmerfrei. Gleichzeitig erlaubt diese Speicherung bei gleicher Displayhelligkeit kleinere Diodenströme und dadurch bessere Effizienz (geringere Wärmeabgabe) und längere Lebensdauer der Leuchtdioden insbesondere bei Verwendung von PLEDs bzw. OLEDs. Und es erlaubt bei komprimierten digitalen Datenströmen (z.B. MPEG2) Bildschirmkonzepte, bei denen nur noch die im Informationsfluss sich ändernden Pixel eines Bildes auch tatsächlich angesteuert werden.Another advantage is that each one Subpixels or pixels are constantly switched on in their brightness values remains until the information state changes. By this saving Property of subpixel diodes, the image is completely flicker-free. At the same time, this storage allows for the same display brightness smaller diode currents and thus better efficiency (lower heat output) and longer life the light-emitting diodes, in particular when using PLEDs or OLEDs. And it allows for compressed digital data streams (e.g., MPEG2) Screen concepts where only the information flow changing Pixels of an image, in fact be controlled.

Zur technischen Realisierung werden in den bisher verwendeten 2-, 3- oder mehr-Schicht-Leuchtdioden-Aufbau weitere Schichten und Steuerelektroden eingefügt, sodass eine steuerbare Leuchtdiode entsteht, wie z.B. die in 1 abgebildete Vierschicht-Leuchtdiode.For technical implementation, further layers and control electrodes are inserted into the previously used 2-, 3- or more-layer light-emitting diode structure, so that a controllable light-emitting diode is formed, such as the in 1 Pictured four-layer LED.

Dabei ist zu beachten, dass für eine reine X-Y-Ansteuerung die Ansteuerung und deren Elektronik und die eigentliche Diodenversorgungsspannung U galvanisch voneinander getrennt werden müssen.It should be noted that for pure X-Y control the control and its electronics and the actual diode supply voltage U must be galvanically separated from each other.

Die Ansteuerung in einer Matrix erfolgt direkt über X- und Y-Lines (2). Das Triggern (Vierschichtdiode in Durchlass schalten) erfolgt durch einen Puls in Sperrrichtung der inneren Diode P2-N1 mit der Durchbruchspannung V 1; das Retriggern erfolgt durch einen Puls mit umgekehrter Spannung V2 in Flussrichtung der inneren Diode. Die Retriggerelektronik kann auch reduziert werden, wenn stattdessen jeweils zeilenweise die Spannung U kurzzeitig zum Retriggern unterbrochen wird, wodurch sämtliche Dioden einer X-Line zurückgesetzt werden.Control in a matrix takes place directly via X and Y lines ( 2 ). The triggering (four-layer diode in turn) takes place by a pulse in the reverse direction of the inner diode P2-N 1 with the breakdown voltage V 1; the retriggering takes place by means of a pulse with reversed voltage V2 in the direction of flow of the inner diode. The retrigger electronics can also be reduced if, instead, line by line voltage U is briefly interrupted for retriggering, whereby all the diodes of an X-Line are reset.

Die Herstellung der Diodenmatrix kann wie bisher mit den bekannten Verfahren wie z.B. Spincoating oder Lithographie oder durch Aufbringung mit einem Inkjet-Printer erfolgen [4,5,6].The production of the diode matrix can, as before, with the known methods such. spincoating or lithography or by applying with an inkjet printer [4,5,6].

Bei den z.B. bisher verwendeten 3-Schicht-Polymere-Dioden, bestehend aus ITO-Anode, Löchertransportschicht p1, lichtemittierender Schicht n1, Elektronentransportschicht n2 und der Ca/Al-Kathode werden lediglich eine weitere Löchertransportschicht p2 und die Steuerelektroden zugefügt (1).In the 3-layer polymer diodes previously used, for example, consisting of ITO anode, hole transport layer p1, light-emitting layer n1, electron transport layer n2 and the Ca / Al cathode, only one further hole transport layer p2 and the control electrodes are added ( 1 ).

Das Einfügen dieser weiteren p-Schicht erhöht zugleich die Lichtemmissionseffizienz und die Lebensdauer der Diode, weil durch diese Schicht das Eindringen insbesondere von Metall-Ionen aus der Ca-Kathode in die Lichtemmissionsschicht reduziert wird.The insertion of this further p-layer increases at the same time the light emission efficiency and the life of the diode, because this layer reduces the penetration of metal ions in particular from the Ca cathode into the light emission layer becomes.

Ausführungsbeispiel 1Embodiment 1

Im Beispiel wird der Einsatz von 4-Schicht-Polymere-Leuchtdioden in einer Color-Display-Matrix am Beispiel einer PAL-16:9-Fernsehbildschirmfolie mit 768*576 Pixeln gezeigt, der mit einem DIN A3-Inkjet-Printer mit 2400/1200 dpi-Auflösung hergestellt wird:In the example, the use of 4-layer polymer light-emitting diodes in a color display matrix the example of a PAL 16: 9 TV screen with 768 * 576 pixels shown produced with a DIN A3 inkjet printer with 2400/1200 dpi resolution becomes:

3 zeigt die Pixel-Darstellung mit den Farb- und Subpixeln, wobei in X-Richtung die 1200 dpi-Auflösung und in Y-Richtung die 2400 dpi-Auflösung gewählt wurde; ein Pixel hat hier die Größe von 25*37 Printerdots, was einer Pixelgröße von 0.53mm*0.39mm entspricht. Die kleinste in diesem Fall darstellbare Diode (Elementardiode) besteht aus 4 Printerdots Länge und 1 Printerdot Breite, deren Querschnitt durch die Schichten in 4 zu sehen ist,
wobei (1) die X-Lines aus Al/Ag sind, die direkt auf der Trägerfolie (9) liegen mit Kontaktfenstern (2) durch die Isolierschicht (10) zu den X-gates aus Al/Ag (3). Die Kathoden aus Ca/Al (4) liegen ebenfalls auf der Isolierschicht. Darauf sind aufeinander die n- bzw. p-Polymere-Schichten (z.B. PEDT/PSS, PANI, poly-TPD o.ä als p-Schicht, MEH-PPV, MPS-PPV, CN-PPV o.ä als Lichtemmissions-n-Schicht und poly-OXZ o.ä. als n-Schicht) ausgeführt (11). Zu oberst liegen die transparenten ITO-Anoden (7) und die Y-lines/-gates (6) aus Al/Ag und eine transparente Schutzschicht (8). 3 shows the pixel representation with the color and subpixels, with the 1200 dpi resolution in the X direction and the 2400 dpi resolution in the Y direction; one pixel here has the size of 25 * 37 printer dots, which corresponds to a pixel size of 0.53mm * 0.39mm. The smallest diode that can be represented in this case (elementary diode) consists of 4 Printerdots length and 1 Printerdot width, whose cross section through the layers in 4 you can see,
in which ( 1 ) are the X-lines of Al / Ag, which are directly on the carrier film ( 9 ) lie with contact windows ( 2 ) through the insulating layer ( 10 ) to the X-gates of Al / Ag ( 3 ). The cathodes of Ca / Al ( 4 ) are also on the insulating layer. On top of each other, the n- or p-polymer layers (eg PEDT / PSS, PANI, poly-TPD or the like as p-layer, MEH-PPV, MPS-PPV, CN-PPV or the like as Lichtemmissions-n Layer and poly-OXZ or the like as n-layer) ( 11 ). At the top are the transparent ITO anodes ( 7 ) and the Y-lines / gates ( 6 ) of Al / Ag and a transparent protective layer ( 8th ).

Wie in 5 gezeigt, werden die Schichten mit dem Inkjet-Printer mit entsprechenden Trocknungsphasen auf die Folie aufgebracht und zum Schluß mit einer transparenten Schutzschicht versehen:

  • – Ausbringen der X-Lines (1) auf die Trägerfolie
  • – Ausbringen einer Isolierschicht mit den Fenstern (2) für die X-gates-Kontaktpunkte
  • – Aufbringen der X-gates (3) und der Kathodenleitungen –U (4)
  • – Ausbringen der Schichten n2, p2, n1 in die Subpixelfelder (5) mit den Randisolierungen
  • – Aufbringen der Y-lines/-gates (6), der Schicht p1 und der Anodenleitungen +U1 bis +U3 (7)
  • - Ausbringen einer transparenten Schutzschicht (8)
As in 5 are shown, the layers are applied with the inkjet printer with appropriate drying phases on the film and finally provided with a transparent protective layer:
  • - spreading the X-Lines ( 1 ) on the carrier film
  • - applying an insulating layer to the windows ( 2 ) for the X-gates contact points
  • - applying the X-gates ( 3 ) and the cathode lines -U ( 4 )
  • - applying the layers n2, p2, n1 into the subpixel fields ( 5 ) with the edge insulation
  • - Applying the Y-lines / gates ( 6 ), the layer p1 and the anode lines + U1 to + U3 (7)
  • Application of a transparent protective layer ( 8th )

Die Zahlen in den Subpixelfeldern in 3 und 5 entsprechen der Anzahl der Elementardioden in einem Feld und damit der relativen Größe der lichtemittierenden Flächen. Bei Bruchteilen in den Feldern werden die Elementardioden entsprechend optisch abgedeckt. Die Subpixelflächen entsprechen genau den Wertigkeiten einer 8-bit-Darstellung, sodass 24-bit-RGB-Signale direkt dargestellt werden können.The numbers in the subpixel fields in 3 and 5 correspond to the number of elementary diodes in a field and thus the relative size of the light emitting surfaces. For fractions in the fields, the elementary diodes are optically covered accordingly. The sub-pixel areas correspond exactly to the valences of an 8-bit representation, so that 24-bit RGB signals can be displayed directly.

Die Ansteuerung der Subpixel (8 in X-Richtung, 3 in Y-Richtung pro Pixel) geschieht durch herkömmliche Elektronik, die am oberen und linken Rand der Folie untergebracht wird (6):
In die Y-Logik werden die RGB-Signale byte-seriell (Di und ¬Di) mit der Taktfrequenz C ( = 3 * Pixelfrequenz) eingespeist, wobei (C and ¬Di) die Spannung V2 und (¬C and Di) Masse über das Y-Selekt-Signal Yse1 auf die X-lines legt.The control of the subpixels (8 in the X direction, 3 in the Y direction per pixel) is done by conventional electronics, which is accommodated at the top and left edges of the film ( 6 ):
In the Y-logic, the RGB signals are byte-serial (Di and ¬Di) fed with the clock frequency C (= 3 * pixel frequency), where (C and ¬Di) the voltage V2 and (¬C and Di) ground via put the Y-select signal Yse1 on the X-lines.

In der X-Logik steuern die Color-Selekt-Signale Renb1, Genb1, Benb1 und die Taktfrequenz C und ¬C mit dem X-Selekt-Signal Xse1 entweder die Spannung V 1 (bei ¬C) oder Masse (bei C) auf die Y-lines.In X-Logic, the color select signals control Renb1, Genb1, Benb1 and the clock frequency C and ¬C with the X-select signal Xse1 either the voltage V 1 (at ¬C) or mass (at C) on the Y-lines.

Die Versorgungsspannungen U1 bis U3 für die verschiedenfarbigen Subpixel-Dioden werden den Anoden getrennt zugeführt, wodurch eine Farbabstimmung durch einfache Spannungsregulierung möglich ist.The supply voltages U1 to U3 for the different colored subpixel diodes are fed to the anodes separately, whereby a color adjustment by simple voltage regulation is possible.

Ausführungsbeispiel 2Embodiment 2

Im zweiten Beispiel wird die Technik an Hand eines HDTV-Großbild-Displays im Format 16:9 mit einer Auflösung von 1440*1080 Pixeln gezeigt, der mit einem DIN A0 Drucker hergestellt wird. Die Größe der Elementardioden wurde hier wegen der zumeist unterschiedlichen Stärke der Lichtemmission bei unterschiedlichen Farben verschieden groß gewählt und lässt sich beliebig anpassen: für Rot und Blau ist die Elementardiode 8 Printerdots lang , bei Grün 7 Printerdots mit jeweils 1 Printerdot Breite. Die Aufteilung der Subpixelflächen mit 64+2 und 32+16+8+4+1+1/2 (statt 32+1/2+1/4 und 16+8+4+2+1 wie in 3) ergibt damit eine Pixelgröße von 46*69 Printerdots, was einer Pixelgröße von 0,97mm*0,73mm entspricht, also einer Größe, die für den im Heimbereich üblichen 3m-Betrachtungsabstand gut ist. Das Display hat dann eine Größe von 140cm*79cm mit einer Bildschirmdiagonalen von 160cm und ist mit einem DIN A0-Drucker mit Einzugsüberlänge herstellbar.The second example shows the technique using a 16: 9 widescreen HDTV display with a resolution of 1440 * 1080 pixels, produced with a DIN A0 printer. The size of the elementary diodes was here chosen because of the mostly different strength of the light emission at different colors of different sizes and can be adjusted arbitrarily: for red and blue the elementary diode is 8 printer dots long, green 7 printer dots each with 1 Printerdot width. The division of the subpixel surfaces with 64 + 2 and 32 + 16 + 8 + 4 + 1 + 1/2 (instead of 32 + 1/2 + 1/4 and 16 + 8 + 4 + 2 + 1 as in 3 ) results in a pixel size of 46 * 69 printer dots, which corresponds to a pixel size of 0.97mm * 0.73mm, so a size that is good for the usual 3m viewing distance in the home. The display then has a size of 140cm * 79cm with a screen diagonal of 160cm and can be produced with a DIN A0 printer with Einzugsüberlänge.

Wie in 6 gezeigt ist bei Verwendung von X- und Y-Address-Registern statt der X- und Y-Shiftregister eine gezielte Selektion von Pixeln möglich, was es ermöglicht, die übrige Geräteelektronik so auszulegen, dass nur die Pixel angesteuert werden, die sich im Bilddatenstrom auch tatsächlich ändern. Solche direkten Ansteuerungen werden mit der stetigen Erhöhung der Bildschirmauflösungen und damit der Pixelfrequenzen immer notwendiger; sie lassen sich bei den heute verwendeten komprimierten Bilddatenströmen besonders gut einsetzen.As in 6 shown using X- and Y-address registers instead of the X and Y shift registers a specific selection of pixels is possible, which makes it possible to design the remaining device electronics so that only the pixels are controlled, which are in the image data stream as well actually change. Such direct drives become more and more necessary with the continuous increase of the screen resolutions and thus of the pixel frequencies; They can be used particularly well in the compressed image data streams used today.

Die Bild- und Pixelgeometrie in den Ausführungsbeispielen ist so gewählt worden, dass bei der gegebenen Druckerauflösung eine Pixeldarstellung mit 4:3-Pixelratio erzielt wurde. Natürlich kann diese beliebig an die Erfordernisse angepasst werden; so sind z.B. auch statt des hier verwendeten 4:3-Pixelratios die in Computerbildschirmen verwendeten 1:1-Pixelratios wählbar. Auch die Ansteuerung (hier eine acht-mal-drei-X-Y-Ansteuerung) kann variiert werden (z.B. fünf-mal-finf-X-Y-Ansteuerung), um die Pixel- und Subpixelgrößen entsprechend den Erfordernissen anzupassen.The image and pixel geometry in the exemplary embodiments has been chosen such that a pixel representation with a 4: 3 pixel ratio was achieved at the given printer resolution. Of course, this can be adapted to any requirements; For example, instead of the 4: 3 Pixelratios used here are the computer screens used 1: 1 pixelratios selectable. Also, the drive (here, an eight by three XY drive) can be varied (eg, five-by-five XY drive) to adjust the pixel and sub-pixel sizes according to requirements.

Bei größeren Bildschirmen erlauben auch erweiterte Pixelgrößen die Erhöhung der Subpixelwertigkeiten (64, 128 etc), was es dann auch ermöglicht 30-bit (oder mehr)-RGB-Signale darzustellen.Allow for larger screens also extended pixel sizes the increase the subpixel scores (64, 128 etc), which also allows 30-bit (or more) RGB signals display.

Mit heutigen Inkjet-Printern mit 2400/1200 dpi-Auflösung bis zu einer Größe DIN A0+Überlänge lassen sich Bildschirme mit sehr hohen Auflösungen von 2700*2000 Pixel mit Bildschirmdiagonalen von bis zu 160 cm herstellen.With today's inkjet printers using 2400/1200 dpi resolution up to a size DIN A0 + allow excess length screens with very high resolutions of 2700 * 2000 pixels with screen diagonals of up to 160 cm.

Referenzen:Credentials:

  • [1] EP 1211916 Method of manufacturing organic EL Elements and organic EL displays[1] EP 1211916 Method of manufacturing EL EL Elements and organic EL displays
  • [2] US2002047567 Organic LED divice display of matrix type and fabrication method[2] US2002047567 Organic LED display of matrix type and fabrication method
  • [3] EP1209744 Organic electroluminiscent device, manufacturing method[3] EP1209744 Organic electroluminescent device, manufacturing method
  • [4] EP1212386 formulation for depositing light-emitting polymere layer[4] EP1212386 Formulation for depositing light-emitting polymers
  • [5] EP1192676 aligned polymers for an organic TFT[5] EP1192676 aligned polymers for an organic TFT
  • [6] EP1147564 method of producing organic light-emitting devices[6] EP1147564 Method of producing organic light-emitting devices

Claims (2)

Digital steuerbare Leuchtdioden als Matrix-Pixelelemente zur Herstellung von ausschließlich digital angesteuerten, aktiven Matrix-Displays, dadurch gekennzeichnet dass a) die Leuchtdioden aus vier oder mehr Schichten von Löchertransport-, Lichtemmisions- und Elektronentransportmaterialien bestehen und neben den Anoden und Kathoden eine oder zwei Steuerelektroden haben. b) die Leuchtdioden unter 1.a) aus jedem der bekannten LED-Materialien (Si-LED, OLED, PLED o.a.) bestehen können c) die Leuchtdioden unter 1.a) – 1.b) direkt durch Signale auf den x- und y-Leitungen eines Matrix-Displays selektiert werden können d) die Leuchtdioden unter 1.a) – 1.c) ausschließlich durch digitale Signale angesteuert werden e) die Leuchtdioden unter 1.a) – 1.d) ausschließlich digital betrieben werden mit den Zuständen lichtemmitierend (leitend) oder nicht lichtemmitierend (gesperrt) f) die Leuchtdioden unter 1.a) – 1.e) keine zusätzliche Pixelelektronik benötigenDigitally controllable light-emitting diodes as matrix pixel elements for the production of exclusively digitally driven, active matrix displays, characterized in that a) the light-emitting diodes consist of four or more layers of hole transport, Lichtemmisions- and electron transport materials and in addition to the anodes and cathodes one or two control electrodes to have. b) the light-emitting diodes under 1.a) can consist of any of the known LED materials (Si-LED, OLED, PLED or the like) c) the light-emitting diodes under 1.a) - 1.b) directly by signals on the x- and d) the LEDs under 1.a) - 1.c) can be controlled exclusively by digital signals e) the LEDs under 1.a) - 1.d) are exclusively operated digitally with the Light-transmitting (conducting) or non-light-emitting (blocked) states f) the light-emitting diodes under 1.a) - 1.e) do not require any additional pixel electronics Digitale Ansteuerung der unter Patentanspruch 1 angegebenen digital steuerbaren Leuchtdioden als Subpixel der Bildpixel zur fächenproportionalen, bitweisen Helligkeitsdarstellung, dadurch gekennzeichnet dass a) die Pixel eines Displays in Subpixel organisiert sind, die der Anzahl der Informationsbits entsprechen, die dargestellt werden sollen b) die Organisation der Subpixel eines Pixels unter 2.a) in einer Display-Matrix in x- und y-Richtung den Erfordernissen der Bildgeometrie entspricht c) die Flächen der Subpixel unter 2.a) – 2.b) proportional den Bitwertigkeiten sind d) die Subpixel unter 2.a) – 2.c) als digital steuerbare Leuchtdioden ausgelegt sind e) die Ansteuerung der Subpixel unter 2.a) – 2.d) ausschließlich durch digitale Elektronik an den Rändern der Display-Matrix geschieht f) die Ansteuerung der Subpixel unter 2.a) – 2.e) sequenziell mit dem Bilddatenstrom oder selektiv pixelorientiert über Adressregister erfolgen kann g) die Lichtemmission der Leuchtdioden unter 2.d) konstant bleibt, solange die Versorgungsspannung konstant anliegt h) die Versorgungsspannungen der Leuchtdioden unter 2.d) für unterschiedliche Lichtemmissionsmaterialien getrennt zugeführt werden könnenDigital control specified under claim 1 digitally controllable light emitting diodes as subpixels of the image pixels to fächenproportionalen, bitwise brightness representation, characterized in that a) The pixels of a display are organized in subpixels that are the number correspond to the information bits to be displayed b) the organization of the subpixels of a pixel under 2.a) in a display matrix in the x and y direction corresponds to the requirements of the image geometry c) the surfaces the subpixel under 2.a) - 2.b) are proportional to the bit weights d) the subpixels below 2.a) - 2.c) are designed as digitally controllable light-emitting diodes e) the control the subpixel under 2.a) - 2.d) exclusively done by digital electronics on the edges of the display matrix f) the control of the subpixels under 2.a) - 2.e) sequentially with the Image data stream or selectively pixel-oriented via address register can g) the light emission of the LEDs under 2.d) constant remains as long as the supply voltage is constant H) the supply voltages of the LEDs under 2.d) for different Light emission materials can be supplied separately
DE10305870A 2003-02-13 2003-02-13 Digital controllable matrix element for preparation of light emitting diodes (LED) useful in pixel electronics, and in electronic image representation based on polymers, silicon, or organic LED Withdrawn DE10305870A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE10305870A DE10305870A1 (en) 2003-02-13 2003-02-13 Digital controllable matrix element for preparation of light emitting diodes (LED) useful in pixel electronics, and in electronic image representation based on polymers, silicon, or organic LED

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10305870A DE10305870A1 (en) 2003-02-13 2003-02-13 Digital controllable matrix element for preparation of light emitting diodes (LED) useful in pixel electronics, and in electronic image representation based on polymers, silicon, or organic LED

Publications (1)

Publication Number Publication Date
DE10305870A1 true DE10305870A1 (en) 2004-08-26

Family

ID=32747772

Family Applications (1)

Application Number Title Priority Date Filing Date
DE10305870A Withdrawn DE10305870A1 (en) 2003-02-13 2003-02-13 Digital controllable matrix element for preparation of light emitting diodes (LED) useful in pixel electronics, and in electronic image representation based on polymers, silicon, or organic LED

Country Status (1)

Country Link
DE (1) DE10305870A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004042356A1 (en) * 2004-09-01 2006-03-02 Siemens Ag Display unit for electrical devices comprises a first emitter substance which emits at a first wavelength and a second emitter substance which emits at a second wavelength different from the first wavelength
DE102013113010A1 (en) * 2013-11-25 2015-05-28 Osram Opto Semiconductors Gmbh Radiation-emitting semiconductor component

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60201679A (en) * 1984-03-26 1985-10-12 Rohm Co Ltd Light-emitting display device
US5525811A (en) * 1990-06-12 1996-06-11 Nec Corporation Organic quantum semiconductor and quantum semiconductor device
WO1999019900A2 (en) * 1997-10-14 1999-04-22 Patterning Technologies Limited Method of forming an electronic device
US6157356A (en) * 1996-04-12 2000-12-05 International Business Machines Company Digitally driven gray scale operation of active matrix OLED displays
JP2001068726A (en) * 1999-08-25 2001-03-16 Nippon Sheet Glass Co Ltd Light-emitting thyristor
US20010045929A1 (en) * 2000-01-21 2001-11-29 Prache Olivier F. Gray scale pixel driver for electronic display and method of operation therefor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60201679A (en) * 1984-03-26 1985-10-12 Rohm Co Ltd Light-emitting display device
US5525811A (en) * 1990-06-12 1996-06-11 Nec Corporation Organic quantum semiconductor and quantum semiconductor device
US6157356A (en) * 1996-04-12 2000-12-05 International Business Machines Company Digitally driven gray scale operation of active matrix OLED displays
WO1999019900A2 (en) * 1997-10-14 1999-04-22 Patterning Technologies Limited Method of forming an electronic device
JP2001068726A (en) * 1999-08-25 2001-03-16 Nippon Sheet Glass Co Ltd Light-emitting thyristor
US20010045929A1 (en) * 2000-01-21 2001-11-29 Prache Olivier F. Gray scale pixel driver for electronic display and method of operation therefor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004042356A1 (en) * 2004-09-01 2006-03-02 Siemens Ag Display unit for electrical devices comprises a first emitter substance which emits at a first wavelength and a second emitter substance which emits at a second wavelength different from the first wavelength
DE102013113010A1 (en) * 2013-11-25 2015-05-28 Osram Opto Semiconductors Gmbh Radiation-emitting semiconductor component

Similar Documents

Publication Publication Date Title
DE102006060412B4 (en) Light-emitting display and method for driving it
EP1683210B1 (en) Full colour organic display with colour filter technology with suitable white emitter material and applications thereof
DE69833257T2 (en) DISPLAY DEVICE
DE102016125957B4 (en) Organic light emitting diode display panel
DE60220654T2 (en) SCREENING METHOD
DE69631643T2 (en) Control for an array of organic light emitting diodes
DE60123344T2 (en) Active matrix self-emitting display and active matrix organic electroluminescent display
DE102015226690B4 (en) Matrix substrate and display panel
DE69621853T2 (en) Pixels with the head contacts of the LEDs in one level and displays
EP2564383B1 (en) Pixel circuit for an active matrix oled display
DE69331749T2 (en) FLAT SCREEN WITH DIODE STRUCTURE
DE69914302T2 (en) ELECTROLUMINESCENT DISPLAY DEVICES WITH ACTIVE MATRIX
DE112006002235T5 (en) A display driving method and apparatus for driving a multicolor passive matrix electroluminescent display
DE69122829T2 (en) Brightness control for a flat display device
DE102006024448B4 (en) Organic electroluminescent device and method for its production
DE102019134179B4 (en) DISPLAY DEVICE
DE69321135T2 (en) HIGH RETURN PANEL DISPLAY DEVICE
DE102014114778B4 (en) PIXEL ELEMENT STRUCTURE, ARRAY STRUCTURE AND DISPLAY DEVICE
DE10150836B4 (en) Organic color EL display
DE102022134935B4 (en) SCREENBOARD AND DISPLAY DEVICE AND MOBILE DEVICE CONTAINING THEM
DE102005058268B4 (en) System and method for driving an electroluminescent display
DE102020133362A1 (en) Foldable display device and control method therefor
DE69603351T2 (en) ELECTROLUMINESCENCE DISPLAY DEVICE
DE10305870A1 (en) Digital controllable matrix element for preparation of light emitting diodes (LED) useful in pixel electronics, and in electronic image representation based on polymers, silicon, or organic LED
DE102005057699B4 (en) Self-luminous device

Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8122 Nonbinding interest in granting licences declared
8120 Willingness to grant licences paragraph 23
8139 Disposal/non-payment of the annual fee