WO2021053083A1 - Anordnung und verfahren zum betreiben eines diodenarrays - Google Patents
Anordnung und verfahren zum betreiben eines diodenarrays Download PDFInfo
- Publication number
- WO2021053083A1 WO2021053083A1 PCT/EP2020/076004 EP2020076004W WO2021053083A1 WO 2021053083 A1 WO2021053083 A1 WO 2021053083A1 EP 2020076004 W EP2020076004 W EP 2020076004W WO 2021053083 A1 WO2021053083 A1 WO 2021053083A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- led
- electrode
- sensor element
- control unit
- operating state
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000004907 flux Effects 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims description 12
- 239000003990 capacitor Substances 0.000 claims description 10
- 230000001419 dependent effect Effects 0.000 claims description 5
- 238000013459 approach Methods 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 description 21
- 230000001105 regulatory effect Effects 0.000 description 12
- 238000005259 measurement Methods 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 238000003491 array Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 3
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- 230000003213 activating effect Effects 0.000 description 1
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- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
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- 230000003071 parasitic effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000012360 testing method Methods 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]
-
- 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
- G09G3/34—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 by control of light from an independent source
- G09G3/3406—Control of illumination source
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/12—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto
- H01L31/14—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto the light source or sources being controlled by the semiconductor device sensitive to radiation, e.g. image converters, image amplifiers or image storage devices
- H01L31/147—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto the light source or sources being controlled by the semiconductor device sensitive to radiation, e.g. image converters, image amplifiers or image storage devices the light sources and the devices sensitive to radiation all being semiconductor devices characterised by potential barriers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/12—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto
- H01L31/14—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto the light source or sources being controlled by the semiconductor device sensitive to radiation, e.g. image converters, image amplifiers or image storage devices
- H01L31/147—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto the light source or sources being controlled by the semiconductor device sensitive to radiation, e.g. image converters, image amplifiers or image storage devices the light sources and the devices sensitive to radiation all being semiconductor devices characterised by potential barriers
- H01L31/153—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto the light source or sources being controlled by the semiconductor device sensitive to radiation, e.g. image converters, image amplifiers or image storage devices the light sources and the devices sensitive to radiation all being semiconductor devices characterised by potential barriers formed in, or on, a common substrate
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
- H05B45/12—Controlling the intensity of the light using optical feedback
-
- 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
- G09G2310/0264—Details of driving circuits
- G09G2310/0291—Details of output amplifiers or buffers arranged for use in a driving circuit
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/029—Improving the quality of display appearance by monitoring one or more pixels in the display panel, e.g. by monitoring a fixed reference pixel
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/029—Improving the quality of display appearance by monitoring one or more pixels in the display panel, e.g. by monitoring a fixed reference pixel
- G09G2320/0295—Improving the quality of display appearance by monitoring one or more pixels in the display panel, e.g. by monitoring a fixed reference pixel by monitoring each display pixel
-
- 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
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
-
- 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
- G09G2330/028—Generation of voltages supplied to electrode drivers in a matrix display other than LCD
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
- G09G2360/141—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light conveying information used for selecting or modulating the light emitting or modulating element
- G09G2360/142—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light conveying information used for selecting or modulating the light emitting or modulating element the light being detected by light detection means within each pixel
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
- G09G2360/145—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen
- G09G2360/147—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen the originated light output being determined for each pixel
Definitions
- the invention relates to an arrangement and a method for operating a diode array.
- the supply of individual picture elements is a problem in diode arrays.
- the luminous image of a diode array is, among other things, largely dependent on how evenly the individual light-emitting diodes (LEDs), through which the picture elements are formed, are made using appropriate driver current sources are supplied (so-called "matching").
- driver current sources are supplied (so-called "matching").
- high-precision, in particular regulated, current sources are used which work with the aid of a current reference.
- Regulated current sources have an increased output resistance, for example due to feedback, and thus offer a constant current that is almost load-independent.
- the latter in particular can significantly ensure an inhomogeneous luminous image in a diode array, even if the driver would have almost perfect accuracy.
- the object on which the invention is based is to create an arrangement and a corresponding method which counteracts or counteracts the aforementioned mismatch and contributes or contributes to a homogeneous luminous image of the diode array.
- the diode array is, for example, a composite of LEDs arranged laterally next to one another.
- the LEDs are arranged in the manner of a matrix along columns and rows of the diode array.
- one picture element of the diode array can be formed by one or more LED (s).
- the LEDs can also be referred to as pLEDs.
- the LEDs are arranged in the diode array, in particular, aligned in such a way that a respective Main direction of emission of the LEDs coincides with one another and with a main direction of emission of the diode array essentially parallel.
- FIG. 1 shows a diode array 10 with a multiplicity of picture elements 5a, 5b which are arranged in a matrix-like manner in n columns and m rows.
- the picture elements 5a, 5b become each formed by one or more light emitting diodes (LEDs) D.
- LEDs light emitting diodes
- Calibration data are usually only generated pixel by pixel in an optical product test. In the case of large diode arrays, this represents a lengthy additional effort with high costs for the end product.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Led Devices (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112020004454.8T DE112020004454A5 (de) | 2019-09-20 | 2020-09-17 | Anordnung und verfahren zum betreiben eines diodenarrays |
KR1020227011251A KR102651999B1 (ko) | 2019-09-20 | 2020-09-17 | 다이오드 어레이를 작동시키기 위한 어레인지먼트 및 방법 |
JP2022517882A JP7428789B2 (ja) | 2019-09-20 | 2020-09-17 | ダイオードアレイを動作させるための装置および方法 |
US17/761,715 US11783762B2 (en) | 2019-09-20 | 2020-09-17 | Device and method for operating a diode array |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019125364.0A DE102019125364A1 (de) | 2019-09-20 | 2019-09-20 | Anordnung und verfahren zum betreiben eines diodenarrays |
DE102019125364.0 | 2019-09-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2021053083A1 true WO2021053083A1 (de) | 2021-03-25 |
Family
ID=72560608
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2020/076004 WO2021053083A1 (de) | 2019-09-20 | 2020-09-17 | Anordnung und verfahren zum betreiben eines diodenarrays |
Country Status (5)
Country | Link |
---|---|
US (1) | US11783762B2 (de) |
JP (1) | JP7428789B2 (de) |
KR (1) | KR102651999B1 (de) |
DE (2) | DE102019125364A1 (de) |
WO (1) | WO2021053083A1 (de) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050225683A1 (en) * | 2004-04-12 | 2005-10-13 | Seiko Epson Corporation | Electro-optical device and electronic apparatus |
US20060038758A1 (en) * | 2002-06-18 | 2006-02-23 | Routley Paul R | Display driver circuits |
US20100252720A1 (en) * | 2009-04-06 | 2010-10-07 | Himax Display, Inc. | Light sensing circuit and method thereof |
US20180336822A1 (en) * | 2017-01-23 | 2018-11-22 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Display module driving device and method |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7348946B2 (en) * | 2001-12-31 | 2008-03-25 | Intel Corporation | Energy sensing light emitting diode display |
US20070205420A1 (en) | 2004-03-24 | 2007-09-06 | Koninklijke Philips Electronics, N.V. | Electroluminescent display devices |
WO2007057822A1 (en) * | 2005-11-21 | 2007-05-24 | Koninklijke Philips Electronics N.V. | Lighting device |
KR100968401B1 (ko) * | 2008-10-16 | 2010-07-07 | 한국과학기술원 | 디스플레이 구동장치 |
DE102011015408B4 (de) * | 2011-03-29 | 2022-10-06 | OSRAM Opto Semiconductors Gesellschaft mit beschränkter Haftung | Optoelektronisches Bauelement und Verfahren zum Betrieb eines optoelektronischen Bauelements |
US9129561B2 (en) * | 2013-03-07 | 2015-09-08 | International Business Machines Corporation | Systems and methods for displaying images |
DE102016112104A1 (de) * | 2016-07-01 | 2018-01-04 | Osram Opto Semiconductors Gmbh | Modulares modul |
CN106782319B (zh) | 2016-12-27 | 2023-10-24 | 京东方科技集团股份有限公司 | 一种像素电路、像素驱动方法、显示装置 |
EP3393206A1 (de) * | 2017-04-21 | 2018-10-24 | Infineon Technologies AG | Pixelselektionsverfahren für einen lichtquellenmatrixtreiber |
-
2019
- 2019-09-20 DE DE102019125364.0A patent/DE102019125364A1/de not_active Withdrawn
-
2020
- 2020-09-17 DE DE112020004454.8T patent/DE112020004454A5/de active Pending
- 2020-09-17 JP JP2022517882A patent/JP7428789B2/ja active Active
- 2020-09-17 KR KR1020227011251A patent/KR102651999B1/ko active IP Right Grant
- 2020-09-17 US US17/761,715 patent/US11783762B2/en active Active
- 2020-09-17 WO PCT/EP2020/076004 patent/WO2021053083A1/de active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060038758A1 (en) * | 2002-06-18 | 2006-02-23 | Routley Paul R | Display driver circuits |
US20050225683A1 (en) * | 2004-04-12 | 2005-10-13 | Seiko Epson Corporation | Electro-optical device and electronic apparatus |
US20100252720A1 (en) * | 2009-04-06 | 2010-10-07 | Himax Display, Inc. | Light sensing circuit and method thereof |
US20180336822A1 (en) * | 2017-01-23 | 2018-11-22 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Display module driving device and method |
Also Published As
Publication number | Publication date |
---|---|
DE112020004454A5 (de) | 2022-08-04 |
KR102651999B1 (ko) | 2024-03-27 |
JP2022549225A (ja) | 2022-11-24 |
KR20220056866A (ko) | 2022-05-06 |
JP7428789B2 (ja) | 2024-02-06 |
DE102019125364A1 (de) | 2021-03-25 |
US20220406247A1 (en) | 2022-12-22 |
US11783762B2 (en) | 2023-10-10 |
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