Angular Color Shift of Micro-LED Displays
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Idw ’08 the 15Th International Display Workshops
IDW ’08 THE 15TH INTERNATIONAL DISPLAY WORKSHOPS Workshops on • LC Science and Technologies • Active Matrix Displays • FPD Manufacturing, Materials and Components • Plasma Displays • EL Displays and Phosphors • Field Emission Display and CRT • Organic LED Displays • 3D/Hyper-Realistic Displays and Systems • Applied Vision and Human Factors • Projection and Large-Area Displays, and Their Components • Electronic Paper • MEMS for Future Displays and Related Electron Devices • Display Electronic Systems Topical Sessions on • Display Technologies for Professional Use • Flexible Displays • Final Program Toki Messe Niigata Convention Center Niigata, Japan December 3(Wed) – 5(Fri), 2008 CONTENTS Program Highlights............................................................................... 5 General Information.............................................................................. 9 Hotel and Travel Information............................................................... 12 Plenary Sessions Wednesday, December 3 IDW ’08 Opening ............................................................................... 16 IDW ’08 Keynote Addresses.............................................................. 16 IDW ’08 Invited Address.................................................................... 17 Workshop on LC Science and Technologies Wednesday, December 3 Opening............................................................................................... 18 LCT1 Fascinating LC Materials ...................................................... -
Wo 2009/026223 A2
(12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date (10) International Publication Number 26 February 2009 (26.02.2009) PCT WO 2009/026223 A2 (51) International Patent Classification: (81) Designated States (unless otherwise indicated, for every B60R 1/12 (2006.01) H04N 7/18 (2006.01) kind of national protection available): AE, AG, AL, AM, B60R 1/00 (2006.01) AO, AT,AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, (21) International Application Number: EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, PCT/US2008/073474 IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, (22) International Filing Date: 18 August 2008 (18.08.2008) LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, (25) Filing Language: English RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, (26) Publication Language: English TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW (30) Priority Data: 60/956,263 16 August 2007 (16.08.2007) US (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, (71) Applicant (for all designated States except US): GENTEX GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, CORPORATION [US/US]; 600 North Centennial Street, ZW), Eurasian (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM), Zeeland, MI 49464 (US). -
Ambient Contrast Ratio of Lcds and OLED Displays
Vol. 25, No. 26 | 25 Dec 2017 | OPTICS EXPRESS 33643 Ambient contrast ratio of LCDs and OLED displays * HAIWEI CHEN, GUANJUN TAN, AND SHIN-TSON WU College of Optics and Photonics, University of Central Florida, Orlando, Florida 32816, USA *[email protected] Abstract: We systematically analyze the ambient contrast ratio (ACR) of liquid crystal displays (LCDs) and organic light-emitting diode (OLED) displays for smartphones, TVs, and public displays. The influencing factors such as display brightness, ambient light illuminance, and surface reflection are investigated in detail. At low ambient light conditions, high static contrast ratio plays a key role for ACR. As the ambient light increases, high brightness gradually takes over. These quantitative results set important guidelines for future display optimization. Meanwhile, to improve an OLED’s ACR at large oblique angles, we propose a new broadband and wide-view circular polarizer consisting of one linear polarizer and two biaxial films. Good performance is realized. © 2017 Optical Society of America under the terms of the OSA Open Access Publishing Agreement OCIS codes: (120.2040) Displays; (230.3720) Liquid-crystal devices; (160.3710) Liquid crystals. References and links 1. D. K. Yang and S. T. Wu, Fundamentals of Liquid Crystal Devices, 2nd ed. (John Wiley & Sons, 2014). 2. H. Seetzen, W. Heidrich, W. Stuerzlinger, G. Ward, L. Whitehead, M. Trentacoste, A. Ghosh, and A. Vorozcovs, “High dynamic range display systems,” ACM Trans. Graph. 23(3), 760–768 (2004). 3. Q. Hong, T. X. Wu, X. Zhu, R. Lu, and S. T. Wu, “Extraordinarily high-contrast and wide-view liquid-crystal displays,” Appl. -
Liquid-Crystal Displays: Big and Bigger Manufacturers Are Pinning Their Hopes on the Entertainment Market to Use up Increasing Production Capacity
Innovation and LCD TV' Highlight SID 2003 • SID 2003 Review • Show Overview • LCDs • Emissives • Microdisplays • Equipment and Materials • Display Semiconductors and Electronics • Business Conference • Awards Cost reduction, evolution, and innovation could all be seen at SID 2003, which bodes well for the display industry's future. 2 Editorial When Did PCs Get Boring ? Kenneth I. Werner 12 Overview: Finding a Theme Cost reduction, evolution, and innovation could all be seen at SID 2003, which bodes well for the display industry's future. Ken Werner 16 Liquid-Crystal Displays: Big and Bigger Manufacturers are pinning their hopes on the entertainment market to use up increasing production capacity. Alfred Poor 20 Emissive Displays Shine On Greg Pease for SID Light-emitting ·displays are being used in applications from head mounted viewers to stadium displays - and everywhere in between. David Lieberman 26 Microdisplays: LCoS Projects a Bright Future At SID 2003, more companies were showing real LCoS-display products, and with supporting components commercially available, more micro display-based products will reach consumers during the next year. Stephen P. Atwood Next Month in Information Display 30 Manufacturing: Equipment and Materials This year, about one-third of the SID exhibitors were equipment or Large-Area Displays materials suppliers - not counting chip suppliers. • DLP"' Rear Projection Patrick Dunn • Tiled Displays 34 Electronics Is Where You Find It • LCDTV The display-electronics environment is changing so rapidly that it is hard • LCoS Projection to recognize a single trend - except that every conceivable ecological niche is being explored for competitive advantages. Ken Werner 38 Expert Opinion: LCD-TV Technology Gary Feather 39 Expert Opinion: Predicting the Future INFORMATION DISPLAY (ISSN 0362-0972) is published eleven Yoichi Taira times a year for the Society for Information Display by Palisades Convention Management, 4 11 Lafayette Street, 2nd Floor, New 40 The First SID Business Conference York, NY 10003; Leonard H. -
Digital Display Circuits This Worksheet and All Related Files Are Licensed Under the Creative Commons Attribution License, Versi
Digital display circuits This worksheet and all related files are licensed under the Creative Commons Attribution License, version 1.0. To view a copy of this license, visit http://creativecommons.org/licenses/by/1.0/, or send a letter to Creative Commons, 559 Nathan Abbott Way, Stanford, California 94305, USA. The terms and conditions of this license allow for free copying, distribution, and/or modification of all licensed works by the general public. Resources and methods for learning about these subjects (list a few here, in preparation for your research): 1 Questions Question 1 What is the purpose of a seven-segment decoder circuit? What is a ”seven-segment” display, and why do we need a decoder circuit to drive it? Research the part number for a typical seven-segment decoder circuit (either CMOS or TTL). file 01417 Question 2 A seven segment decoder is a digital circuit designed to drive a very common type of digital display device: a set of LED (or LCD) segments that render numerals 0 through 9 at the command of a four-bit code: Display driver IC Seven-segment display VDD a a . A b . f b c . g Inputs B d . C e . f . D g . e c d The behavior of the display driver IC may be represented by a truth table with seven outputs: one for each segment of the seven-segment display (a through g). In the following table, a ”1” output represents an active display segment, while a ”0” output represents an inactive segment: D C B A a b c d e f g Display 0 0 0 0 1 1 1 1 1 1 0 ”0” 0 0 0 1 0 1 1 0 0 0 0 ”1” 0 0 1 0 1 1 0 1 1 0 1 ”2” 0 0 1 1 1 1 1 1 0 0 1 ”3” 0 1 0 0 0 1 1 0 0 1 1 ”4” 0 1 0 1 1 0 1 1 0 1 1 ”5” 0 1 1 0 1 0 1 1 1 1 1 ”6” 0 1 1 1 1 1 1 0 0 0 0 ”7” 1 0 0 0 1 1 1 1 1 1 1 ”8” 1 0 0 1 1 1 1 1 0 1 1 ”9” Write the unsimplified SOP or POS expressions (choose the most appropriate form) for outputs a, b, c, and e. -
Symposium Digest Articles Listed Chronologically 1963-1988
Preliminary Table of Contents for SID Symposium Digests 1963-1988 ( author company affiliations not listed) Notes: 1 The index covers full papers and keynote speeches for SID Symposia from 1963 through 1988; panel sessions, seminars and luncheon speakers are not listed 2 Authors' company affiliations are not shown (to be added) 3 Lead author is designated with asterisk ( * ) 4 The first ten (10) digests were designated by number as follows 5 The first ten (10 Symposia were identified by numbers, as follows: 2/1963 -#1; 9/63 - #2; 5/64-#3; 9/64 - #4; 2/65 - #5; 9/65 - #6; 10/66 - #7; 5/67 - #8; 5/68 - #9; 5/69 - #10 Session # Year Page Title Author(s) 1963-1 1 User Requirements for Display Debons, Col, Anthony * 1963-1 13 Scan Conversion and Bright Display Porter, Richard * 1963-1 21 Multicolor Projection System Smith, Fred E.* 1963-1 31 Advanced Display Techniques through the Charactron Redman, James H.* 1963-1 53 Light Valve Display Albanese, Augustine * 1963-1 63 Colordata, A Photographic Large Screen Display system Baron, Peter C.* 1963-1 77 Human Performance Engineering and Information Display Silvern, Leonard * 1963-1 83 Multiple Projection Techniques Klein, R.C.* 1963-1 93 Photochromic Dynamic Display Hines, Logan J.* 1963-1 99 Datachrome Display System Parker, Philip A.* 1963-1 117 High Ambient Light Display Systems Miller, Wendell S.* 1963-1 127 Electroluminescent Displays Hallett, Joseph L.* 1963-1 139 Pseudo 3-D Display Perdue, Joseph L.* 1963-1 155 Aims and Purposes of the S.I.D. Vlahos, Petro * 1963-2 1 Iinformation Systems, -
Organic Light-Emitting Diode (Oled) Display Panel, Oled Display Device and Method for Driving the Same
(19) TZZ¥__T (11) EP 3 147 894 A1 (12) EUROPEAN PATENT APPLICATION (43) Date of publication: (51) Int Cl.: 29.03.2017 Bulletin 2017/13 G09G 3/3225 (2016.01) G09G 3/3233 (2016.01) (21) Application number: 16190336.4 (22) Date of filing: 23.09.2016 (84) Designated Contracting States: (72) Inventors: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB • NA, Se-Hwan GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO 10895 Gyeonggi-do (KR) PL PT RO RS SE SI SK SM TR • LEE, Jae-Young Designated Extension States: 07350 Seoul (KR) BA ME • KIM, Mi-Jung Designated Validation States: 06923 Seoul (KR) MA MD (74) Representative: Viering, Jentschura & Partner (30) Priority: 25.09.2015 KR 20150136459 mbB Patent- und Rechtsanwälte (71) Applicant: LG Display Co., Ltd. Am Brauhaus 8 Yeongdeungpo-gu 01099 Dresden (DE) Seoul 07336 (KR) (54) ORGANIC LIGHT-EMITTING DIODE (OLED) DISPLAY PANEL, OLED DISPLAY DEVICE AND METHOD FOR DRIVING THE SAME (57) Disclosed herein are an OLED display panel (410) further including a switching transistor (T-SW) for controlling application of supply voltage (VDD_EL) in the initializing interval of a pixel (P), an OLED display device including the same, and a method for driving the same. The OLED display panel (410) avoids a short-circuit be- tween supply voltage VDD_EL and reference voltage Vref to thereby reduce initialization voltage applied to the gate terminal of the driving transistor T_dr. The OLED display device can achieve various effects such as im- proved response characteristics of pixels by reducing de- viation in the initial voltage used in sampling. -
Virtual Reality and Augmented Reality a Survey from Scania’S Perspective
EXAMENSARBETE INOM MASKINTEKNIK, AVANCERAD NIVÅ, 30 HP STOCKHOLM, SVERIGE 2019 Virtual Reality and Augmented Reality A Survey from Scania’s Perspective KARL INGERSTAM KTH SKOLAN FÖR INDUSTRIELL TEKNIK OCH MANAGEMENT Virtual Reality and Augmented Reality A Survey from Scania’s Perspective Karl Ingerstam 2019 Master of Science Thesis TPRMM 2019 KTH – Industrial Engineering and Management Production Engineering SE-100 44 Stockholm Abstract Virtual reality and augmented reality are technological fields that have developed and expanded at a great pace the last few years. A virtual reality is a digitally created environment where computer- generated elements are displayed to a user via different interfaces for the respective senses. Video is used for displaying images, creating a realistic environment, while audio is played to stimulate hearing and other sorts of feedback is used to stimulate the sense of touch in particular. Augmented reality is a sub-category of virtual reality where the user sees the real surroundings, but computer-generated imagery is displayed on top of objects in the environment. This type of technology brings a lot of new possibilities and potential use cases in all sorts of areas, ranging from personal entertainment, communication and education to medicine and heavy industry. Scania is a global manufacturer of heavy trucks and buses, and provider of related services, based in Sweden. By studying Scania’s different departments and surveying the fields of virtual reality and augmented reality, the aim of this thesis is to identify situations and use cases where there is potential for Scania to implement virtual reality and augmented reality technology. This thesis also studies what obstacles implementation of these technologies bring. -
Copyrighted Material
1 Introduction 1.1 Flat panel displays A display is an interface containing information which stimulates human vision. Information may be pictures, animation, movies and articles. One can say that the functions of a display are to produce or reproduce colors and images. Using ink to write, draw or print on paper is a traditional display, like a painting or a book. However, the content of such a traditional display is motionless and typically inerasable. In addition, a light source, synthetic or natural, is needed for reading a book or seeing a picture. There are lots of electronic displays that use an electronic signal to create images on a panel and stimulate the human eye. Typically, they can be classified as emissive and nonemissive. Emissive displays emit light from each pixel which constitutes an image on the panel. In contrast, nonemissive displays modulate light, by means of absorption, reflection, refraction and scattering, to display colors and images. For a nonemissive display, a light source is needed. Hence, these can be classified into transmissive and reflective displays. One of the most successful display technologies for home entertainment is the cathode ray tube (CRT), which is in widespread use in televisions (TVs). CRT is already a mature technology which has the advantages of self-emission, wide viewing angle, fast response, good color saturation, long lifetime and good image quality. However, a major disadvantage is its bulky size. The depth of a CRT is roughly equal to the length and width of the panel. For example, a monitor’s depth is about 40 cm for a 19-inch (38.6 cm × 30.0 cm) CRT with an aspect ratio of 4:3. -
What Is LCD (Liquid Crystal Display)?
UNIT - IV DISPLAY DEVICES SPH 1102- PHYSICS OF ELECTRON DEVICES TOPICS COVERED: Introduction - what is display devices? - Luminescence - Electroluminescence Active Display Devices - CRT – Cathode Ray Tube - LED – Light Emitting Diode Passive Display Devices - LCD – Liquid Crystal Display - Plasma Display - Dynamic Scattering Display - Touch screen INTRODUCTION Definition: - A display device is an output device for presentation of information in visual or tactile form (the latter used for example in tactile electronic displays for blind people). When the input information is supplied as an electrical signal, the display is called an electronic display. - Display devices are used for the visual presentation of information. Types of display devices: Electronic display devices based on various principles were developed. - Active display devices are based on luminescence. - Passive display devices reflect or modulate light LUMINESCENCE Definition: Luminescence is the general term used to describe the emission of electromagnetic radiation from a substance due to a non-thermal process. Luminescence occurs from a solid when it is supplied with some form of energy. Types of Luminescence: - Photoluminescence arises as a result of absorption of photons. - Fluorescence persists for a short lifetime of the transition between the two energy levels. - Phosphorescence persists for much longer time (more than 10-8 s). -Cathodoluminescence - Excitation of electrons by bombardment with a beam of electrons. -Electroluminescence - Excitation of electrons by application of an electric field. - Thermoluminescence – Excitation of electrons by the application of High temperature. - Chemiluminescence - Excitation of electrons due to chemical reaction. Active Display Devices Electronic visual displays present visual information according to the electrical input signal (analog or digital) by emitting light, they are called active displays. -
Information Display Magazine November/December 2012
Nov-Dec Cover.qxp_SID Cover 11/27/12 9:16 AM Page 1 TV TECHNOLOGY ISSUE Nov./Dec. 2012 Official Monthly Publication of the Society for Information Display • www.informationdisplay.org Vol. 28, Nos. 11 & 12 ID ND12 Jaco pC2_Layout 1 11/27/12 9:38 AM Page C2 NEED HELP WITH YOUR DISPLAY SOLUTION? Embedded Computer Systems /ŶĚƵƐƚƌŝĂů>͛ƐĨƌŽŵϭ͟ƚŽϭϬϮ͟ Touch Screen Solutions Optical Enhancements Custom Enclosures LED Backlight / Driver Design EXPERIENCE MATTERS! PROVIDING DISPLAY SOLUTIONS FOR OVER FIFTEEN YEARS AS-9100 Registered ISO-9001 Registered www.jacodisplays.com 877.FPD.JACO / 877.373.5226 e-mail: [email protected] ID TOC NDec p1 11/29/12 8:11 AM Page 1 SID Information SOCIETY FOR INFORMATION DISPLAY NOVEMBER/DECEMBER 2012 ON THE COVER: Illustrated is a representa- DISPLAY VOL. 28, NOS. 11&12 tion of the color richness, high details of the world, and how each incremental improvement in television systems (represented by the correspond- ing labeled rectangles) opens up our view and enables us to experience the scene. In this scope, contents the original NTSC/PAL television would be like looking through a paper-towel tube. By includ- ing the red DCI (Digital Cinema rectangles), 2 Editorial: TVs under Pressure the cover properly represents what we would see in By Stephen P. Atwood the theater today compared to the latest television standards. 3 Industry News: Large-OLED-TV Makers Face Manufacturing Challengers By Jenny Donelan 4 Guest Editorial: A Look at Television Past and Future By David Trzcinski 6 Display Marketplace: Now Is the Winter of Our Discontent Selling TVs isn’t the profitable business it used to be. -
Society for Information Display by Palisades Convention Management, 411 Lafayette Street, 2Nd Floor, New York, NY 10003; Leonard H
2008 DISPLAY WEEK / DISPLAY OF THE YEAR AWARDS ISSUE More Energyenergy efficient.Efficient. May/June 2008 Vol. 24, Nos. 5 & 6 INFORMATION DISPLAY INFORMATION SID Official Monthly Publication of the Society for Information Display • www.informationdisplay.org MAY/JUNE 2008 MAY/JUNE THE BEST OF 2007 SID ’08 SHOW ISSUE ● Display of the Year Awards ● Products on Display at Display Week 2008 ● Glass Substrates for LCD TV ● History of Projection Display Technology (Part 1) vikuiti.com ● 1-800-553-9215 The difference is amazing. 3 Journal of the SID May Preview © 3M 2008 See Us at SID ’08 Booth 307 See Us at SID ’08 Booth 329 MAY/JUNE 2008 Information VOL. 24, NOS. 5&6 DISPLAY COVER: The 2008 Display of the Year Awards honor the best display products of 2007 with outstanding features, novel and outstanding display 2 Editorial applications, and novel components that significantly Welcome to LA! enhance the performance of displays. See page 16 Stephen P. Atwood for the details 4 Industry News Werner Haas, LCD Pioneer at Xerox, Dies at Age 79. 6 President’s Corner Are You Hungry? THE BEST OF Paul Drzaic 2007 8 The Business of Displays OLED Displays on the Verge of Commercial Breakthrough? Robert Jan Visser 16 2008 Display of the Year Award Winners Show the Future is Now From the commercialization of OLED displays to the rebirth of 3-D cinema, CREDIT: Clockwise from top left: FUJIFILM, Samsung SDI, Ltd., Luminus Devices, the best display products of 2007 point to the realization of many years of Sony Corp., Apple, and RealD.