Samsung Develops Largest Flexible LCD Panel
Samsung Electronics Press Release
SEOUL, Korea—(BUSINESS WIRE)—Nov. 28, 2005—Samsung Electronics Co., Ltd., announced today that it has developed the world’s largest transmissive TFT LCD (thin-film transistor, liquid crystal display), with sufficiently high resolution to display digital television content. The seven-inch, 640x480 (VGA-standard) flexible display uses a transparent plastic substrate that is thinner, lighter and more durable than the conventional LCD glass panels used today. Moreover, the full-color transmissive LCD panel maintains a constant thickness even when it is bent.
Considered the next-generation in flat panel displays, this technology involves the use of pliable plastic instead of rigid glass substrates in TFT-LCD production. The plastic will not break when flexed, allowing much greater freedom in commercial designs requiring flexible full-color, high-resolution display components. The seven-inch flexible TFT-LCD is optimized for mobility applications, including cell phones and notebook computers. System designers and OEMs also may apply the advanced Samsung display technology to new applications, such as fashion-enhancing or wearable electronic display designs, thanks to its differentiated flexible format.
The new display is double the size of Samsung’s five-inch flexible LCD display prototype announced in January 2005.
With this advancement, Samsung has overcome daunting problems involving the plastic substrate’s heat sensitivity including a previous challenge to maintain the display’s substrate thickness when subjected to typical commercial thermal conditions. Samsung developed a low-temperature processing technique that can be used to manufacture the display’s amorphous thin-film transistors, color filters and liquid crystals at process temperatures much lower than standard glass-based, amorphous silicon (a-Si) technology.
Drawing on technology adopted for the production of low-temperature (less than 130 degrees Celsius) a-Si TFT LCD and color filter, Samsung’s proprietary LCD technology minimizes substrate deformation by preventing not only changes in thickness but also distortion of images by binding two extremely-thin panels together through a new proprietary system design.
The latest flexible LCD panel was developed under a three-year program funded by Samsung Electronics’ next-generation display development group under the auspices of the Korean Ministry of Commerce, Industry and Energy, supported by Samsung’s Corporate Research Fund.
Specification of Samsung 7” a-Si TFT-LCD Model
Display Mode: Transmissive
———————————————————————————————————
Screen Size (diagonal): 7 inches”
———————————————————————————————————
Resolution: 640 x 480 x RBG (114 ppi)
———————————————————————————————————
Aperture Ratio: 40 percent
———————————————————————————————————
Brightness: 100 nit
———————————————————————————————————
Color Saturation: 60 percent (of NTSC)
———————————————————————————————————
About Samsung Electronics
Samsung Electronics Co., Ltd. is a global leader in semiconductor, telecommunication, digital media and digital convergence technologies with 2004 sales reaching US$55.2 billion and net income of US$10.3 billion reported by the parent company. Employing approximately 113,600 people in over 90 offices in 48 countries, the company consists of five primary business units: the Digital Appliance Business, Digital Media Business, LCD Business, Semiconductor Business and Telecommunication Network Business. Recognized as one of the fastest growing brands, Samsung Electronics is a leading producer of digital TVs, memory chips, mobile phones and TFT-LCDs. For more information, please visit www.samsung.com