LCD NEWS - Fortec AG

LCD TechnologyAdaptive Design TechnologyCustomer needs drive our efforts to furtherenhance LCD quality and usability.Module technology thatmakes LCDs more complete.Optimal solutionsthat meet customer needs.A proposal for an optimalbacklight system.Color and gray-scale reproductionapproaching the originalUnlike the LCDs used in consumer-oriented products such ashousehold televisions and computer monitors, the LCDs built intovarious industrial equipment must adapt to a rapidly expanding list ofspecifications.Adaptive design technology, the 4th core technology of NEC LCDTechnologies, fulfills the requests of customers from various industriesin a detailed manner by fusing the cutting-edge technologies withtechnological know-how accumulated over many years.In contrast to SFT, NLT and VIT technologies as panel technologiesdesigned to improve LCD panel performance, adaptive designtechnology is module technology that increases the completeness ofLCDs as a total package by integrating backlight systems, peripheralcircuits and mechanism design.Adaptive design technology is applied to every product in the NECLCD Technologies lineup.CustomerCustomerCustomerCustomerCustomerThe specifications sought in various industrial equipment LCDs relateto more than display performance. Industrial LCDs must meet a widevariety of detailed requirements in terms of module size, temperatureattributes, interface, power consumption and other factors inaccordance with various conditions, such as application, usageenvironment and other circumstances unique to the piece ofequipment.Take industrial equipment designed and built for long-term productionas an example. In applications like these, NEC LCD Technologiesfacilitates smooth, ongoing performance by maintaining productinterface and mounting compatibility for quick, easy replacementand upgrading of our latest high-quality, high-performance LCDs.On the other hand, for applications where a more compact andenergy-saving design is required, progress has been made indevelopments related to lightweight, energy-saving products with anarrow frame and slim body. Recently, we have also been promoting alineup of wide-format products to meet needs for displaying moreinformation in a limited amount of space, as well as for displayingdigital moving images. We are also in the process of expanding theoperating temperature range so that our equipment can be used inmore diverse environments.The product lineup of NEC LCD Technologies provides “optimal”solutions that meet diverse customer needs.The backlight system plays an extremely important role among theelements in adaptive design technology. It can affect thespecifications for luminance, color reproduction, module size, weight,power consumption and temperature attributes.Common edge-light backlight systems for displays larger than 5inches use CCFL as a light source, while those smaller than 5 inchesuse white LED as a light source. Products that require extremelyhigh luminance, such as for medical diagnosis by radiographinterpretation, use several aligned CCFLs beneath the LCD panel.In recent years, there has been a rapid increase in white LEDbacklight systems even for modules larger than 5 inches, as theirresistance to vibration and shock has improved through lightweightdesigns with slim bodies and low energy consumption. These offermany advantages, such as the control of high-frequency noise andharmonic currents, as well as the elimination of mercury.NEC LCD Technologies has developed a wide range of backlightsystems and is making efforts to further increase their efficiency.1 CCFL (Cold Cathode Fluorescent Lamp) : A thin fluorescent tube that generates light bydischarging electrons without requiring heat.2 LED (Light-Emitting Diode) : A semiconductor device that generates light when voltage isapplied.We believe that high LCD image quality means precise on-screen imagereproduction of the original subject or object. To achieve precise imagereproduction, the LCD module as a total package with optimally combinedLCD panel, backlight system and peripheral circuitry is important.Two absolute essentials in reproducing richly colored natural imagesare wide color reproduction range and smooth gray scalereproduction. Both are NEC LCD Technologies specialties preciselywhy our LCDs feature the same wide color reproduction range assRGB . The key is finding the optimum combination of color filtersand backlight systems based on the kind of high transmissivity onlyour SFT technology can offer. We also feature products that supportAdobe ® RGB's wide color gamut.A multi-bit driver, customizable internal LUT and other advancedcomponents are the keys to high color separation and smooth grayscale reproduction using this wide color gamut. Such cutting-edgequality ensures optimum reproduction of any and all images down tothe finest details from the delicate nuances of natural tones to thesubtle gradation changes of medical imaging data.1 sRGB International standards on color space established by IEC (International Electrotechnical Commission).2 “Adobe” is a registered trademark or trademark of Adobe Systems Incorporated.3 LUT Look Up TableCIE XYZ colorimetric system (CIE 1931) chromaticity diagramY0.8Long-term Support0.70.6Adaptive designtechnologyModule technology thatincreases the completenessof LCDs as total packages•Interface compatibility support•Installation compatibility supportReduces device design costs when replacing existingproducts with new devices or upgraded versionsOptimal design0.50.40.30.2Adobe ® RGBNTSCExperience andtechnological know-howaccumulated overmany yearsAdvanced LCDdesign technologyBacklight systemPeripheral circuit technologyMechanism design technology, etc.•Narrow frame •Compact •Lightweight•Low energy consumption •WideHelps make equipment more compact and energy efficient.Adapted to various design constraintsWide operating temperature rangeProducts equipped with a high-intensity,direct backlight systemFor monitor use 21.3-inch NL204153AC21-09 NL204153AM21-07A NL160120AC27-22B NL160120AM27-13ARefer to P12 for white LED backlight unit.0.1CCFL72 40 0.1 0.2 0.3 0.4 0.5 0.6 0.7 X4 NL160120BC27-14SA-SFTCCFL B/L, Color gamut 72% of NTCS ratio, Luminance 250cd/m 222.5-inch LCD module equippedwith 10 bit driver•Guaranteed operation in-30˚C to 80˚C/-20˚C to 70˚C temperature rangeAccommodates a wide range of outdoor applications,such as in motorized vehicle interiors and otherextreme temperature environmentsNL192120AC25-02SFT, NLT and VIT are abbreviations, respectively, for Super Fine TFT, Natural Light TFT and Value Integrated TFT.10 11