OLED display technology
|
|
- Amie Welch
- 6 years ago
- Views:
Transcription
1 American Journal of Optics and Photonics 2014; 2(3): Published online June 30, 2014 ( doi: /j.ajop OLED display technology Askari Mohammad Bagher Department of Physics, Payame Noor University, PO Box Tehran, Iran address: To cite this article: Askari Mohammad Bagher. OLED Display Technology. American Journal of Optics and Photonics. Vol. 2, No. 3, 2014, pp doi: /j.ajop Abstract: OLEDs are solid-state devices composed of thin films of organic molecules that create light with the application of electricity. OLEDs can provide brighter, crisper displays on electronic devices and use less power than conventional light-emitting diodes (LEDs) or liquid crystal displays (LCDs) used today. OLEDs are made by placing thin films of organic (carbon based) materials between two conductors. When electrical current is applied, a bright light is emitted. The OLED materials emit light and do not require a backlight (unlike LCDs). Each pixel is a small light-emitting diode, in fact. OLEDs emit light they do not require a backlight and so are thinner and more efficient than LCD displays (which do require a white backlight).in this paper we investigate the characteristics of OLED. Keywords: Organic Light-Emitting Diode, OLED 1. Introduction An organic light-emitting diode (OLED) consists of several semiconducting organic layers sandwiched between two electrodes, at least one of them being transparent. Two simplified device structures are shown in figure 1: a one - side emitting device (left) and a transparent one which emits light both upwards and downwards (right). The device is fabricated by sequentially depositing organic layers on a conducting substrate followed by another conducting electrode. A common device structure comprises a glass substrate coated with indium tin oxide (ITO) as transparent anode and a thin, opaque metal fi lm as cathode. The organic stack including the electrodes is usually thinner than 1 µm. Two classes of organic materials are commonly used for organic light-emitting devices: polymeric substances and so-called small molecule materials which do not exhibit any orientating property and therefore form amorphous films. One interesting aspect of organics-based optoelectronics is the possibility to use simple screen printing or wet deposition techniques for cost-effective fabrication of large-area devices. Nowadays, this applies only to polymeric organics, whereas evaporating techniques still have to be applied for small molecules. Figure 1. Simplify structures of an organic light-emitting device 2. Characteristics of OLED Below, we outlined number of characters on OLED. We intend to review each of these characteristics. The following can be cited, including OLED characters Flat Panels Thin and Flexible OLED is an emerging display technology that enables beautiful and efficient displays and lighting panels. Thin OLEDs are already being used in many mobile devices and TVs, and the next generation of these panels will be flexible and bendable. When we talk about flexible OLEDs, it's important to understand what that means exactly. A
2 American Journal of Optics and Photonics 2014; 2(3): flexible OLED is based on a flexible substrate which can be plastic, metal or flexible glass. The plastic and metal panels will be light, thin and very durable - in fact they will be virtually shatter-proof. It is estimated that the first range of devices to use a flexible display won't be flexible at all. While the manufacturer may bend the display or curve it around a non-flat surface, the final user will not be able to actually bend the device. Still it will have several advantages: these displays will be lighter, thinner and much more durable compared to glass based displays. Second generation flexible OLED devices may indeed be flexible to the final user. Finally, when the technology is ready, we may see OLED panels that you can fold, bend or stretch. This may create all sorts of exciting designs that will enable large displays to be placed in a mobile device and only be opened when required. Fabricating a flexible OLED display is very challenging. The two major challenges are the backplane and the encapsulation [1]. everyday lives. The ultimate reference for artificial light is of course, natural light. Among all high-efficiency/eco-friendly light, OLEDs have the closest spectral distributions to natural light, even in its most natural state. One of the main reasons that a company Chem. is dedicated to producing OLED is to spread its good quality light into the world. OLEDs possess novel and unique characteristics while being the world s most human-friendly light source whose quality of light will eventually represent a higher quality of life. An OLED emits light due to the electroluminescence of thin films of organic semiconductors approximately 100 nm thick. Regular OLEDs are usually fabricated on a glass substrate, but by replacing glass with a flexible plastic such as polyethylene terephthalate (PET) [2] among others, [3] OLEDs can be made both bendable and lightweight. OLED lighting is attracting attention as the next generation lighting having such unprecedented features as thin, light weight, and surface light source. In addition, it features high energy efficacy, no scalding surface, and reduced environmental footprint since it is mercury-free unlike fluorescent lightings. Furthermore, OLED lighting technology is mild to eyes and friendly to people, since it is free of ultra-violet rays. Figure 2. ( 1: current encapsulation technology is Vita's multi-layer technology which is very slow (the panel has to enter the evaporation chamber 6 times). Some companies are working on single-layer barriers and better encapsulation processes, but these haven't been scaled to mass production yet. 2: According to reports, companies is still using LTPS for their plastic based panels, and the production process for LTPS is too hot for the plastic substrate (it will melt) and currently deposits the LTPS transistors on glass and the glass is later delaminated. Some companies display is using an Oxide-TFT which should be easier to produce on a flexible substrate. OLEDs can also be used to make white lighting panels. OLED is a diffuse area lighting source with unique characteristics. While OLED lighting is still in its infancy, many believe that flexible OLED lighting panels may provide designers with a new lighting source that will create stunning designs Light Weight Light has always been an indispensable part of our 2.3. Low Cost Figure 3. ( Researchers worldwide continue search for better luminescent materials for OLED manufacturing. Two new compounds with europium complexes display in their class record high luminescence efficiencies in red, and their properties enable faster, low cost manufacturing of thin OLED films. The processing technology is also different. Currently, amorphous oxide semiconductor TFTs are prepared by a process that requires a large vacuum chamber and a costly coating procedure. UCLA researchers used a solution process, akin to applying a coat of paint to an object and then baking it in an oven. "The improved mobility represents a breakthrough for solution-processed metal oxide TFTs, device's performance is comparable to that of commercial TFTs, but it can be produced at a much lower cost."
3 34 Askari Mohammad Bagher: OLED Display Technology 2.5. Long Life Figure 4. ( As the graph below indicates, recent improvements in the OLED allow some of our OLEDs to run more efficiently with higher outputs. When run through a lower current, a longer life for the OLED will result. This improvement in lifetime allows for the technology to be used in more applications and provides further protection of product longevity. Standard off-the-shelf displays are available as well as custom solutions for high volume application This improvement in lifetime allows for the technology to be used in more applications and provides further protection of product longevity. Standard off-theshelf displays are available as well as custom solutions for high volume applications [5] Backlighting and Bright OLEDs are brighter than LEDs. Because the organic layers of an OLED are much thinner than the corresponding inorganic crystal layers of an LED, the conductive and emissive layers of an OLED can be multilayered. Also, LEDs and LCDs require glass for support, and glass absorbs some light. OLEDs do not require glass [4]. LED stands for light-emitting diode. These are little solid-state devices that make light because of the movement of electrons through a semi-conductor. LEDs are relatively small compared to compact fluorescent and incandescent light bulbs, but they can get extremely bright. However, LEDs aren t small enough to be used as the pixels of a television they re way too big for that. That s why LEDs are only used as the backlight for LCD televisions. OLEDs do not require backlighting like LCDs. LCDs work by selectively blocking areas of the backlight to make the images that you sees, while OLEDs generate light themselves. Because OLEDs do not require backlighting, they consume much less power than LCDs (most of the LCD power goes to the backlighting). This is especially important for battery-operated devices such as cell phones. Figure 5. ( Low Voltage Figure 6. ( Efficient and low-voltage top-emitting OLED using surface-modified Ag anode is reported. By inducing a thin silver oxide at the surface of Ag, whole injection from Ag anodes into OLEDs is largely enhanced yet with rather high reflectivity retained. Top-emitting devices using such surface-modified Ag anode show device characteristics competitive with those of a bottom-emitting device using the indium tin oxide anode. OLED materials are designed to generate light with high efficiency at a low voltage in a stable device structure. Typically 70% of the light is trapped in the OLED. Efficient extraction of generated light is the next key step to improve OLED efficiency. Nova led introduced a new product series using dedicated out coupling Materials to increase light extraction [6].
4 American Journal of Optics and Photonics 2014; 2(3): Figure 7. ( Good Luminous Efficiency OLEDs are capable of emitting any color including white when a voltage is applied by combining organic materials that emit various colors such as red, green, and blue. The soft surface luminescence makes OLEDs suitable for lighting a wide area, and along with the benefits of being not overly bright when viewed directly and a thin and lightweight structure, they are receiving attention as the next generation light source. Lighting devices equipped with the high efficiency OLEDs are considered to achieve a luminous efficiency comparable to or higher than that of fluorescent lamps (approx lm/w) or LED lighting fixtures (approx. 80 lm/w) currently available in the market. Further, a wide variety of applications are expected for OLED devices, including use in general lighting. White OLED lighting will create new value in people's daily lives and has great potential for realizing a comfortable and ecological lifestyle. 1- Large color range OLEDs can enable a greater artificial contrast ratio (both dynamic range and static, measured in purely dark conditions) and a wider viewing angle compared to LCDs because OLED pixels emit light directly. OLED pixel colors appear correct and un shifted, even as the viewing angle approaches 90 from normal. Additionally, as the OLED material used to produce blue light degrades significantly more rapidly than the materials that produce other colors; blue light output will decrease relative to the other colors of light. This variation in the differential color output will change the color balance of the display and is much more noticeable than a decrease in overall luminance.[7] This can be avoided partially by adjusting color balance, but this may require advanced control circuits and interaction with the user, which is unacceptable for some users. More commonly, though, manufacturers optimize the size of the R, G and B sub pixels to reduce the current density through the sub pixel in order to equalize lifetime at full luminance. For example, a blue sub pixel may be 100% larger than the green sub pixel. The red sub pixel may be 10% smaller than the green. Improvements to the efficiency and lifetime of blue OLEDs are vital to the success of OLEDs as replacements for LCD technology. Considerable research has been invested in developing blue OLEDs with high external quantum efficiency as well as a deeper blue color.[8] [9] External quantum efficiency values of 20% and 19% have been reported for red (625 nm) and green (530 nm) diodes, respectively.[10] [11] However, blue diodes (430 nm) have only been able to achieve maximum external quantum efficiencies in the range of 4% to 6%.[12] Figure 9. (lcdtvbuyingguide.com) Reference Figure 8. ( (The Newly Developed White OLED with the World's Highest Luminous Efficiency) According to the sum company the 15x15 cm OLED panel was able to achieve better luminous efficacy with the use of new in-house developed blue phosphor. In addition, the company developed light extractive technology enabling light to be extracted from organic layers to increase quantum efficiency. [1] [2] Gustafsson, G.; Cao, Y.; Treacy, G. M.; Klavetter, F.; Colaneri, N.; Heeger, A. J. (1992). "Flexible light-emitting diodes made from soluble conducting polymers". Nature 357 (6378): 477. Bibcode:1992Natur G. Doi: /357477a0. [3] MacDonald, W. A. (2004). "Engineered films for display technologies". Journal of Materials Chemistry 14: Doi: /B310846P.
5 36 Askari Mohammad Bagher: OLED Display Technology [4] [5] [6] [7] "Ageless OLED". Retrieved [8] Shen, Jiun Yi; Lee, Chung Ying; Huang, Tai-Hsiang; Lin, Jiann T.; Tao, Yu-Tai; Chien, Chin-Hsiung; Tsai, Chiitang (2005). "High Tg blue emitting materials for electroluminescent devices". Journal of Materials Chemistry (free text) 15 (25): doi: /b501819f. [9] Kim, Seul Ong; Lee, Kum Hee; Kim, Gu Young; Seo, Ji Hoon; Kim, Young Kwan; Yoon, Seung Soo (2010). "A highly efficient deep blue fluorescent OLED based on diphenylaminofluorenylstyrene-containing emitting materials". Synthetic Metals 160 (11 12): [10] Jabbour, G. E.; Kawabe, Y.; Shaheen, S. E.; Wang, J. F.; Morrell, M. M.; Kippelen, B.; Peyghambarian, N. (1997). "Highly efficient and bright organic electroluminescent devices with an aluminum cathode". Applied Physics Letters 71 (13): [11] Mikami, Akiyoshi; Koshiyama, Tatsuya; Tsubokawa, Tetsuro (2005). "High-Efficiency Color and White Organic Light-Emitting Devices Prepared on Flexible Plastic Substrates". Japanese Journal of Applied Physics 44: 608. [12] Mikami, Akiyoshi; Nishita, Yusuke; Iida, Yoichi (2006). "35-3: High Efficiency Phosphorescent Organic Light- Emitting Devices Coupled with Lateral Color-Conversion Layer". SID Symposium Digest of Technical Papers 37: 1376.
Sep 09, APPLICATION NOTE 1193 Electronic Displays Comparison
Sep 09, 2002 APPLICATION NOTE 1193 Electronic s Comparison Abstract: This note compares advantages and disadvantages of Cathode Ray Tubes, Electro-Luminescent, Flip- Dot, Incandescent Light Bulbs, Liquid
Performance Comparison of Bilayer and Multilayer OLED
Performance Comparison of Bilayer and Multilayer OLED Akanksha Uniyal, Poornima Mittal * Department of Electronics and Communication School of Engineering and Technology Graphic Era University, Dehradun-248002,
Page 1 of 8 Main > Electronics > Computers How OLEDs Work by Craig Freudenrich, Ph.D. Introduction to How OLEDs Work Imagine having a high-definition TV that is 80 inches wide and less than a quarter-inch
IOSR Journal of Engineering (IOSRJEN) ISSN (e): , ISSN (p): Volume 2, PP Organic Led. Figure 1.
IOSR Journal of Engineering (IOSRJEN) ISSN (e): 2250-3021, ISSN (p): 2278-8719 Volume 2, PP 46-51 www.iosrjen.org Organic Led Prof.Manoj Mishra 1, Sweety Vade 2,Shrutika Sawant 3, Shriwari Shedge 4, Ketaki
Development of OLED Lighting Panel with World-class Practical Performance
72 Development of OLED Lighting Panel with World-class Practical Performance TAKAMURA MAKOTO *1 TANAKA JUNICHI *2 MORIMOTO MITSURU *2 MORI KOICHI *3 HORI KEIICHI *4 MUSHA MASANORI *5 Using its proprietary
Silole Derivative Properties in Organic Light Emitting Diodes
Silole Derivative Properties in Organic Light Emitting Diodes E. Duncan MLK HS Physics Teacher Mentors: Prof. Bernard Kippelen & Dr. Benoit Domercq Introduction Theory Methodology Results Conclusion Acknowledgements
VARIOUS DISPLAY TECHNOLOGIESS
VARIOUS DISPLAY TECHNOLOGIESS Mr. Virat C. Gandhi 1 1 Computer Department, C. U. Shah Technical Institute of Diploma Studies Abstract A lot has been invented from the past till now in regards with the
Joint Development of Ultra-Bright, Inorganic EL Light-Emitting Materials. November 2, 2005 KURARAY CO., LTD.
Joint Development of Ultra-Bright, Inorganic EL Light-Emitting Materials November 2, 2005 KURARAY CO., LTD. Sales Trends of Display-related Products (Kuraray (standalone)) FY1994 FY1999 FY2004 Sales Ratio
OLED Technology Introduction
OLED Technology Introduction An organic light emitting diode (OLED) consists of several semiconducting organic layers sandwiched between two electrodes at least one of them being transparent. A simplified
Fundamentals of Organic Light Emitting Diode
Fundamentals of Organic Light Emitting Diode M. F. Rahman* 1 and M. Moniruzzaman 2 Organic light emitting diode (OLED) has drawn tremendous attention in optoelectronic industry over the last few years.
Organic Light Emitting Diodes
ISSN: 2278 0211 (Online) Organic Light Emitting Diodes Badisa Sai Ram Krsihna Final Year B.Tech, Dept. of ECE, KL University, Vaddeswaram, AP, India Angadi Suresh Associate Professor B.Tech, Dept. of ECE,
Development of OLED Lighting Applications Using Phosphorescent Emission System
Development of OLED Lighting Applications Using Phosphorescent Emission System Kazuhiro Oikawa R&D Department OLED Lighting Business Center KONICA MINOLTA ADVANCED LAYERS, INC. October 10, 2012 Outline
Phosphorescent OLED Technologies: The Next Wave. Plastic Electronics Conference Oct 9, 2012
Phosphorescent OLED Technologies: The Next Wave Plastic Electronics Conference Oct 9, 2012 UDC Company Focus IP innovator, technology developer, patent licensor and materials supplier for the rapidly growing
:: Reduce needs for heat dissipation components. :: Extend battery life in mobile products. :: Save power and reduce heat generation in TVs
UniversalPHOLED Technology and Materials UniversalPHOLED Phosphorescent OLED technology and materials offer record-breaking performance to bring competitive advantages to your OLED display and lighting
LIGHT EMITTING POLYMER from
19 Electronics Electrical Instrumentation Seminar Topics Page 2 Introduction-Imagine these scenarios - After watching the breakfast news on TV, you roll up the set like a large handkerchief, and stuff
the Most Popular Display Technology?
Why is LCD the Most Popular Display Technology? History of Liquid Crystal Display (LCD) As early as 1889, scientists discovered that chemicals such as cholesteryl benzoate, when melted into liquid form,
OLEDs VS. LEDs - Organic LEDs and Their Feasibility in General-Lighting Applications PowerSecure Lighting White Paper
OLEDs VS. LEDs - Organic LEDs and Their Feasibility in General-Lighting Applications PowerSecure Lighting White Paper EfficientLights EnergyLite I.E.S. Lighting Solais Lighting Divisions of PowerSecure
High Efficiency White OLEDs for Lighting
CIE-y Journal of Photopolymer Science and Technology Volume 25, Number 3 (2012) 321 326 2012CPST High Efficiency White OLEDs for Lighting Takuya Komoda, Kazuyuki Yamae, Varutt Kittichungchit, Hiroya Tsuji
Organic light emitting diodes for display technology
Organic light emitting diodes for display technology Shamna Shamsudeen MScTI - ZITI-Heidelberg University OLED ZITI, Uni Heidelberg Page1 What s Light Light: Visible part of EM spectra. Ref:[1] Thermoluminescence:
Organic LEDs. Yuhan Ye Apr. 26
Organic LEDs Yuhan Ye Apr. 26 Special topic presentation for C150 4/26/2018 1 Outline Brief introduction and advantages of OLED Working principles Examples for different kinds of OLEDs and processing methods
Development and Mass-Production of an OLED Lighting Panel - Most-Promising Next-Generation Lighting -
Development and Mass-Production of an OLED Lighting Panel - Most-Promising Next-Generation Lighting - 47 KEIICHI HORI *1 JOJI SUZUKI *2 MAKOTO TAKAMURA *3 JUNICHI TANAKA *4 TSUTOMU YOSHIDA *5 YOSHITAKA
Basically we are fooling our brains into seeing still images at a fast enough rate so that we think its a moving image.
Basically we are fooling our brains into seeing still images at a fast enough rate so that we think its a moving image. The formal definition of a Moving Picture... A sequence of consecutive photographic
Organic Light Emitting Diodes (OLEDs) Physics 496/487 Matt Strassler
Organic Light Emitting Diodes (OLEDs) Physics 496/487 Matt Strassler Why OLEDs Lighting efficiency Incandescent bulbs are inefficient Fluorescent bulbs give off ugly light LEDs (ordinary light emitting
Advancement in the Technology of Organic Light Emitting Diodes
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-issn: 2278-1676,p-ISSN: 2320-3331, PP 06-10 www.iosrjournals.org Advancement in the Technology of Organic Light Emitting Diodes Rohan
OLED Status quo and our position
OLED Status quo and our position Information Day 2013 A Deep Dive into the LC&OLED Business Dr. Udo Heider Vice President OLED Darmstadt, Germany June 26, 2013 Disclaimer Remarks All comparative figures
High Performance White OLEDs Technologies for Lighting
High Performance White OLEDs Technologies for Lighting 10 October, 2012 Takuya Komoda Core Technologies Development Center Panasonic Corporation Contents 2 1. Expectation to the Next Generation Lighting
Emiflective Display with Integration of Reflective Liquid Crystal Display and Organic Light Emitting Diode
Japanese Journal of Applied Physics Vol. 46, No. 1, 2007, pp. 182 186 #2007 The Japan Society of Applied Physics Emiflective Display with Integration of Reflective Liquid Crystal Display and Organic Light
Technology White Paper Plasma Displays. NEC Technologies Visual Systems Division
Technology White Paper Plasma Displays NEC Technologies Visual Systems Division May 1998 1 What is a Color Plasma Display Panel? The term Plasma refers to a flat panel display technology that utilizes
The Technological Trends of Future AMOLED
Invited Paper The Technological Trends of Future AMOLED Jong hyuk Lee*, Hye Dong Kim, Chang Ho Lee, Hyun-Joong Chung, Sung Chul Kim, and Sang Soo Kim Technology Center, Samsung Mobile Display Co., LTD
Liquid Crystal Display (LCD)
Liquid Crystal Display (LCD) When coming into contact with grooved surface in a fixed direction, liquid crystal molecules line up parallelly along the grooves. When coming into contact with grooved surface
These are used for producing a narrow and sharply focus beam of electrons.
CATHOD RAY TUBE (CRT) A CRT is an electronic tube designed to display electrical data. The basic CRT consists of four major components. 1. Electron Gun 2. Focussing & Accelerating Anodes 3. Horizontal
Flexible Flat Panel Display Technology
1 Flexible Flat Panel Display Technology Gregory P. Crawford Division of Engineering, Brown University, Providence RI 1.1 Introduction The manufacturing of flat panel displays is a dynamic and continuously
Process Dependent Performance of Slot Die Coated OLED-Multilayers (TALK)
Process Dependent Performance of Slot Die Coated OLED-Multilayers (TALK) Sebastian Raupp 1,2, Lisa Merklein 1,2, Philip Scharfer 1,2 and Wilhelm Schabel 1 1 Institute of Thermal Process Engineering, Thin
Toward Novel Flexible Display Top-Emitting OLEDs on Al-Laminated PET Substrates
Toward Novel Flexible Display Top-Emitting OLEDs on Al-Laminated PET Substrates FURONG ZHU, XIAO-TAO HAO, ONG KIAN SOO, YANQING LI, AND LI-WEI TAN Contributed Paper We developed a flexible organic LED
An Overview of OLED Display Technology
page:1 An Overview of OLED Display Technology Homer Antoniadis OSRAM Opto Semiconductors Inc. San Jose, CA page:2 Outline! OLED device structure and operation! OLED materials (polymers and small molecules)!
Liquid Crystal Displays
Liquid Crystal Displays Cosmin Ioniţă - Spring 2006 - A brief history 1888 - Friedrich Reinitzer, an Austrian chemist working in the Institute of Plant Physiology at the University of Prague, discovered
Advanced Display Technology (continued) Lecture 13 October 4, 2016 Imaging in the Electronic Age Donald P. Greenberg
Advanced Display Technology (continued) Lecture 13 October 4, 2016 Imaging in the Electronic Age Donald P. Greenberg Cost of HDTV Displays Price $ Plasma Projection TV s LCD s Diagonal Inches Cost of HDTV
High Power Efficiencies at Record Lifetimes: NOVALED s PIN-OLEDs
High Power Efficiencies at Record Lifetimes: NOVALED s PIN-OLEDs Harald Gross, Jan Blochwitz-Nimoth, Jan Birnstock, Ansgar Werner, Michael Hofmann, Philipp Wellmann, Tilmann Romainczyk, Sven Murano, Andrea
Solution Processable OLEDs. Anna Hayer EuroDisplay /09/2013
Solution Processable LEDs Merck KGaA Anna Hayer EuroDisplay 2013 Content 1 Introduction 2 LED Basics 3 Challenges for Solution Processing 4 Current Results 5 Summary 2 EuroDisplay 2013 Hayer - Merck Solution
Application note. Materials. Introduction. Authors. Travis Burt, Huang ChuanXu*, Andy Jiang* Agilent Technologies Mulgrave, Victoria, Australia
Performance of compact visual displays measuring angular reflectance of optically active materials using the Agilent Cary 7000 Universal Measurement Spectrophotometer (UMS) Application note Materials Authors
LED/OLED Technical Training and Applications. Sources: How Stuff Works, LED Magazine, WAC Lighting White Paper, US Department of Energy
LED/OLED Technical Training and Applications WAC Lighting gcompany Sources: How Stuff Works, LED Magazine, WAC Lighting White Paper, US Department of Energy Today s Agenda LED Technology History of LED
P-224: Damage-Free Cathode Coating Process for OLEDs
P-224: Damage-Free Cathode Coating Process for OLEDs Shiva Prakash DuPont Displays, 6 Ward Drive, Santa Barbara, CA 937, USA Abstract OLED displays require the growth of inorganic films over organic films.
High-resolution screens have become a mainstay on modern smartphones. Initial. Displays 3.1 LCD
3 Displays Figure 3.1. The University of Texas at Austin s Stallion Tiled Display, made up of 75 Dell 3007WPF LCDs with a total resolution of 307 megapixels (38400 8000 pixels) High-resolution screens
The Company. A leading OLED player
The Company A leading OLED player Novaled is the company to trade with, work for and invest in. Our company focuses on proprietary organic materials and complementary innovative technologies for superior
[1.9] AMOLED 공정 Introduction OLED Materials Patterning Process Process Equipments
[1.9] AMOLED 공정 1.9.1. Introduction 1.9.2. OLED Materials 1.9.3. Patterning Process 1.9.4. Process Equipments OLED : Organic Light Emitting Diode Organic EL : Organic Electroluminescent 재료및공정 재료의발광메카니즘
Chapter 1 Introduction --------------------------------------------------------------------------------------------------------------- 1.1 Overview of the Organic Light Emitting Diode (OLED) Displays Flat
Development of Extremely High Efficacy White OLED with over 100 lm/w
Journal of Photopolymer Science and Technology Volume 27, Number 3 (2014) 357 361 2014SPST Development of Extremely High Efficacy White OLED with over 100 lm/w Nobuhiro Ide, Kazuyuki Yamae, Varutt Kittichungchit,
Fundamentals of Organic Luminescence
Fundamentals of Organic Luminescence S.M. Sawde Applied Physics dept., Priyadarshini Institute of Engineering and Technology, Nagpur, India R.R.Patil, Institute of Forensic Science, R.T.Road Civil Lines,
TipatOr. Liquid metal switch (LMS) display technology. Avi Fogel
TipatOr Liquid metal switch (LMS) display technology Avi Fogel 972-52-5702938 avifog@gmail.com Who is behind TipatOr TipatOr emerged from a merger of 2 expert groups in the fields of MEMS and Displays
Lecture Flat Panel Display Devices
Lecture 13 6.111 Flat Panel Display Devices Outline Overview Flat Panel Display Devices How do Displays Work? Emissive Displays Light Valve Displays Display Drivers Addressing Schemes Display Timing Generator
COMPENSATION FOR THRESHOLD INSTABILITY OF THIN-FILM TRANSISTORS
COMPENSATION FOR THRESHOLD INSTABILITY OF THIN-FILM TRANSISTORS by Roberto W. Flores A Thesis Submitted to the Graduate Faculty of George Mason University in Partial Fulfillment of The Requirements for
Designers Light Forum. Designing with OLEDs and Integration Components. Giana Phelan, OLEDWorks LLC Mike Fusco, LED Specialists
Designers Light Forum Designing with OLEDs and Integration Components Giana Phelan, OLEDWorks LLC Mike Fusco, LED Specialists March 14, 2018 Credit(s) earned on completion of this course will be reported
Press Release May 17, SMM Develops New Oxide-based Red Phosphor In Collaboration with Tohoku University Research Team
Press Release May 17, 2012 Sumitomo Metal Mining Co., Ltd. SMM Develops New Oxide-based Red Phosphor In Collaboration with Tohoku University Research Team Sumitomo Metal Mining Co., Ltd. (SMM), working
P I SCALE Creating an Open Access Flexible O L E D P ilo t L in e S e r vic e
P I SCALE Creating an Open Access Flexible O L E D P ilo t L in e S e r vic e Pavel Kudlacek pavel.kudlacek@tno.nl P I - SCALE for 2017Flex 1 Lighting c h a lle n g e L ig h t in g c h a lle n g e At least
Organic light emitting diode (OLED) displays
Ultra-Short Pulse Lasers Enable Precision Flexible OLED Cutting FLORENT THIBAULT, PRODUCT LINE MANAGER, HATIM HALOUI, APPLICATION MANAGER, JORIS VAN NUNEN, PRODUCT MARKETING MANAGER, INDUSTRIAL PICOSECOND
ADDING AN O TO LEDS STATUS AND PERSPECTIVES OF ORGANIC LIGHT EMITTING DIODES PAWEL E. MALINOWSKI, TUNGHUEI KE LED EVENT 2017
ADDING AN O TO LEDS STATUS AND PERSPECTIVES OF ORGANIC LIGHT EMITTING DIODES PAWEL E. MALINOWSKI, TUNGHUEI KE LIVING ROOM NOT SO LONG AGO... 2 Source: Warner Bros. Incadescent CRT 3 Source: Warner Bros.
Proceedings of the 3rd International Conference on Engineering & Emerging Technologies (ICEET), Superior University, Lahore, PK, 7-8 April, 2016
OLED TECHNOLOGY Engr.Sohaib Jamil(1) Dr.Shahzad Hussain(1) Department of Electrical Engineering National University of Sciences & Technology (NUST) Islamabad, Pakistan. szmalik1621@yahoo.com; s.hussain@ceme.nust.edu.pk
Samsung LED technology A cost-effective, eco-friendly alternative to conventional LCD technology
Samsung LED technology A cost-effective, eco-friendly alternative to conventional LCD technology Contents Introduction 3 Samsung LED screens outperform CCFL screens in picture quality and reliability 3
Interactive Virtual Laboratories for Studying OLED Technology
Interactive Virtual Laboratories for Studying OLED Technology Phillip I. Cherner 1 Abstract The paper describes a virtual OLED laboratory designed to introduce young people to one of the most contemporary
projectors, head mounted displays in virtual or augmented reality use, electronic viewfinders
Beatrice Beyer Figure 1. (OLED) microdisplay with a screen diagonal of 16 mm. Figure 2. CMOS cross section with OLED on top. Usually as small as fingernails, but of very high resolution Optical system
ACKNOWLEDGEMENT. An organic light-emitting diode (OLED), also light emitting
An organic light-emitting diode (OLED), also light emitting polymer (LEP) and organic electro-luminescence (OEL), is any lightemitting diode (LED) whose emissive electroluminescent layer is composed of
LG Display OLED Light. 1. Corporate Overview 2. Market Trend 3. New Product 4. Advantages of OLED light 5. Applicable Areas 6.
OLED Light 1 LG Display OLED Light 1. Corporate Overview 2. Market Trend 3. New Product 4. Advantages of OLED light 5. Applicable Areas 6. Price Indication 1. Corporate Overview LG Display offers a variety
PROCESS TECHNOLOGIES FOR ADVANCED ORGANIC ELECTRONIC DEVICES: MICRODISPLAYS, LIGHTING AND SOLAR CELLS
PROCESS TECHNOLOGIES FOR ADVANCED ORGANIC ELECTRONIC DEVICES: MICRODISPLAYS, LIGHTING AND SOLAR CELLS Dr. Christian May Fraunhofer IPMS - Center for Organic Materials and Electronic Devices Dresden COMEDD
Novel film patterned retarder utilizing in-plane electric field
Novel film patterned retarder utilizing in-plane electric field Ji-Hoon Lee, 1 Il Hwa Jeong, 2 Ji Hoon Yu, 2 Ki Hoon Song, 2 Kwang-Un Jeong, 3 Shin- Woong Kang, 2 Myoung-Hoon Lee, 3,4 and Seung Hee Lee
Q1. Do LED lights burn out?
Here are answers to your LED lighting Frequently Asked Questions. We hope this page is helpful and informative. Be sure to come back from time to time as we continually add to this page to reflect the
High Brightness LEDs. Light Sources on Steroids
High Brightness LEDs Light Sources on Steroids Course: Photonics and Optical Communications Instructor: Prof. D. Knipp Spring 2007, 20 th April, 2007 Presenter: Borislav Hadzhiev Overview Principle of
Thin-Film Encapsulation of Organic Light Emitting Devices (OLEDs) Dr. Emilie Galand Huntsman Advanced Materials CSEM Plastic Optoelectronics - Basel
Thin-Film Encapsulation of Organic Light Emitting Devices (OLEDs) Dr. Emilie Galand CSEM Plastic Optoelectronics - Basel 25th June 2010 About Huntsman Huntsman is a global manufacturer and marketer of
Scalable self-aligned active matrix IGZO TFT backplane technology and its use in flexible semi-transparent image sensors. Albert van Breemen
Scalable self-aligned active matrix IGZO TFT backplane technology and its use in flexible semi-transparent image sensors Albert van Breemen Image sensors today 1 Dominated by silicon based technology on
Gary Mandle Sr. Product Manager Professional Display Products
Gary Mandle Sr. Product Manager Professional Display Products rganic Light Emitting Diode It is: An emissive output o backlight o plasma gasses Self luminous matrix array Created by sandwiching several
Application Note [AN-007] LCD Backlighting Technologies and Configurations
Application Note [AN-007] LCD Backlighting Technologies Introduction Liquid Crystal Displays (LCDs) are not emissive i.e. they do not generate their own light. Transmissive and transflective displays require
LEDs, New Light Sources for Display Backlighting Application Note
LEDs, New Light Sources for Display Backlighting Application Note Introduction Because of their low intensity, the use of light emitting diodes (LEDs) as a light source for backlighting was previously
Design of Organic TFT Pixel Electrode Circuit for Active-Matrix OLED Displays
JOURNAL OF COMPUTERS, VOL. 3, NO. 3, MARCH 2008 1 Design of Organic TFT Pixel Electrode Circuit for Active-Matrix Displays Aram Shin, Sang Jun Hwang, Seung Woo Yu, and Man Young Sung 1) Semiconductor and
Monitor QA Management i model
Monitor QA Management i model 1/10 Monitor QA Management i model Table of Contents 1. Preface ------------------------------------------------------------------------------------------------------- 3 2.
About LED Lighting. White Paper: Operating Characteristics. Low Power LEDs
2940 Pacific Drive Norcross, GA 30071 Updated-February 19, 2010 White Paper: About LED Lighting Halco Lighting Technologies has spent a significant amount of effort in the development of effective LED
Advanced Display Technology Lecture #12 October 7, 2014 Donald P. Greenberg
Visual Imaging and the Electronic Age Advanced Display Technology Lecture #12 October 7, 2014 Donald P. Greenberg Pixel Qi Images Through Screen Doors Pixel Qi OLPC XO-4 Touch August 2013 http://wiki.laptop.org/go/xo-4_touch
Current and Future Display Technology. NBA 6120 Donald P. Greenberg September 9, 2015 Lecture #4
Current and Future Display Technology NBA 6120 Donald P. Greenberg September 9, 2015 Lecture #4 Georges Seurat, A Sunday on La Grande Jatte. 1884-1886 A Pixel Consists of Approximately 2 2/3 Triads A Pixel
ORGANIC LIGHT EMITTING DIODES (OLEDS): TECHNOLOGIES AND GLOBAL MARKETS
ORGANIC LIGHT EMITTING DIODES (OLEDS): TECHNOLOGIES AND GLOBAL MARKETS SMC069D September 2015 Gupta A. S. Project Analyst ISBN: 1-62296-133-1 BCC Research 49 Walnut Park, Building 2 Wellesley, MA 02481
Technical background and design options to raise energy efficiency and reduce the environmental impact of TVs
Appliances Guide Get super efficient appliances Technical background and design options to raise energy efficiency and reduce the environmental impact of TVs Author Thomas Götz Published 11/2015 bigee.net
Developments. in organic displays
Developments in organic displays by John K. Borchardt Rapid advances in materials and manufacturing technology are making organic light-emitting diodes (OLEDs) the leading technology for a new generation
NSRP Electrical Panel July 2018
NSRP Electrical Panel July 2018 OLED Evolution of Solid State Lighting https://www.youtube.com/watch?v=76sx5v4ufsk Purpose Provide NSRP Electrical Panel background / technical basis / Features, Advantages,
center for organic materials and electronic devices dresden
F R A U N H O F E R I N S T I T U T e F o R P h o t o n i c M i c r o S y s t e m s I P M S center for organic materials and electronic devices dresden p r e f a c e Dr. Christian May Head of Business
OLED for Lighting. Outline
OLED for Lighting Monica Katiyar MME & SCDT Indian Institute of Technology, Kanpur Outline Lighting Photometry and colorimetry Some examples Various approaches to W-OLED 1 500,000 years ago Lighting Gas
Present and future of OLED lighting
Present and future of OLED lighting Dr. Wolfgang Dötter Authorized Company Officer OLEDWorks Global Q-EHS Manager & Senior Integral Project Manager 1 Vision In 10 years there will be only Solid State Lighting;
CHAPTER 9. Actives Devices: Diodes, Transistors,Tubes
CHAPTER 9 Actives Devices: Diodes, Transistors,Tubes 1 The electrodes of a semiconductor diode are known as anode and cathode. In a semiconductor diode, electrons flow from cathode to anode. In order for
P_02_1011:A Novel Pixel Circuit to Compensate for the Degradation of OLED Luminance in High-Resolution AMOLED Displays
P_0_1011:A Novel Pixel Circuit to Compensate for the Degradation of OLED Luminance in High-Resolution AMOLED Displays National Cheng Kung University Department of Electrical Engineering IDBA Lab. Advisor..
Displays and framebuffers
Reading Optional Displays and framebuffers Brian Curless CSE 557 Autumn 2017 OpenGL Programming Guide (the red book available online): First four sections of chapter 2 First section of chapter 6 Foley
Display Technologies. Corning: The Technology Behind the Glass
Display Technologies Corning: The Technology Behind the Glass Dr. David Chen Director, Application Engineering and Asia Commercial Technology Taiwan Corning Display Technologies Taiwan June 13, 2008 Forward
FASwitch - A MEMS Display Backplane Manufactured by Flex Circuit Methods
FASwitch - A MEMS Display Backplane Manufactured by Flex Circuit Methods Presenter: Dr. Nicholas F. Pasch Rolltronics Corporation 750 Menlo Ave. Menlo Park, CA 94025 npasch@rolltronics.com Introduction
Lecture 8. Display Devices. Cathode Ray Tube (CRT) Liquid Crystal Displays (LCD) Light-Emitting Diode (LED) Gas Plasma DLP
Lecture 8 Display Devices Cathode Ray Tube (CRT) Liquid Crystal Displays (LCD) Light-Emitting Diode (LED) Gas Plasma DLP Display Devices Display technology - CRT or LCD technologies. Cable technology -
SUPPLEMENTARY INFORMATION
User-interactive electronic-skin for instantaneous pressure visualization Chuan Wang 1,2,3, David Hwang 1,2,3, Zhibin Yu 1,2,3, Kuniharu Takei 1,2,3, Junwoo Park 4, Teresa Chen 4, Biwu Ma 3,4, and Ali
Organic Light Emitting Devices
Organic Light Emitting Devices From Displays to Lighting By G. Parthasarathy, J. Liu, and A. R. Duggal Recently there has been significant interest in electroluminescence from organic materials. Driven
Advanced Display Manufacturing Technology
Advanced Display Manufacturing Technology John Busch Vice President, New Business Development Display and Flexible Technology Group September 28, 2017 Safe Harbor This presentation contains forward-looking
FIRST CALL FOR PAPERS SID Society for Information Display INTERNATIONAL SYMPOSIUM, SEMINAR & EXHIBITION. May 19 24, 2013
FIRST CALL FOR PAPERS SID 2013 Society for Information Display INTERNATIONAL SYMPOSIUM, SEMINAR & EXHIBITION May 19 24, 2013 VANCOUVER CONVENTION CENTER VANCOUVER, BRITISH COLUMBIA, CANADA SID SOCIETY
A Review- on Different Types of Displays
, pp.327-332 http://dx.doi.org/10.14257/ijmue.2016.11.8.33 A Review- on Different Types of Displays Shubham Shama 1, Udita Jindal 2, Mehul Goyal 3, Sahil Sharma 4 and Vivek Goyal 5 1-4Department of ECE,
Display Devices & its Interfacing
Display Devices & its Interfacing 3 Display systems are available in various technologies such as i) Cathode ray tubes (CRTs), ii) Liquid crystal displays (LCDs), iii) Plasma displays, and iv) Light emitting
Quantum Dot Solutions for Lighting and Display Applications. Frank Ignazzitto APEC Conference February 9, 2012
Quantum Dot Solutions for Lighting and Display Applications Frank Ignazzitto APEC Conference February 9, 2012 QD Vision s Focused & Integrated Approach The only quantum dot company focused solely on displays
Light is Life. Modern Light out of Europe. Event Optische Technologien, Brussels OSRAM Opto Semiconductors GmbH.
Event Optische Technologien, Brussels 09.11.2004 Modern Light out of Europe Bernhard Stapp OSRAM Opto Semiconductors GmbH 9.11.2004 Seite: 1 Light is Life 9.11.2004 Seite: 2 ..and our modern world is based
Light, Bright, and. Julie Brown Universal Display Corporation.
Light, Bright, and Julie Brown Universal Display Corporation jjbrown@universaldisplay.com May 3, 2006 A Perspective OLEDs Yesterday OLEDs Today OLEDs Tomorrow Milestones in OLEDs (1960-2000) 1963 Pope
Content. Core Technology (Short introduction) LCMO (Light Controlled Molecular Orientation) technology
Content Core Technology (Short introduction) LCMO (Light Controlled Molecular Orientation) technology LCMO Patterned Films for Light management : Applications Examples LCMO- Photo Patterned Retarders LCMO-
New Pixel Circuit Compensating Poly-si TFT Threshold-voltage Shift for a Driving AMOLED
Journal of the Korean Physical Society, Vol. 56, No. 4, April 2010, pp. 1185 1189 New Pixel Circuit Compensating Poly-si TFT Threshold-voltage Shift for a Driving AMOLED C. L. Fan, Y. Y. Lin, B. S. Lin