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August 07, 2017

JDI Announces Development of a 21.3-inch Monochrome LTPS TFT Display
for Medical-use Monitors


Japan Display Inc. (JDI) today announced the development of a 21.3-inch high resolution (5 mega-pixel) monochrome TFT display made by low temperature polysilicon (LTPS) technology.

In order to assure high accuracy in medical diagnoses, diagnostic-use displays have recently tended to require higher resolution, higher contrast, excellent grayscale, and brighter and longer lifetime backlights. After many years of supplying medical-use displays using amorphous silicon (a-Si) TFT technologies, JDI has developed a brand new 21.3-inch high resolution (5 mega-pixel) monochrome TFT display incorporating JDI’s most advanced IPS and LTPS technologies to meet the needs for higher performance displays coming about from the medical market.

When a-Si technology is used in high-end medical monitors featuring high brightness (e.g., 2000cd/m2), there are certain side effects that arise from using a more powerful backlight, such as higher cost, bulky heat-sink design, potential noise from fans, higher power consumption, etc. These medical monitors need a better display solution to overcome these problems. By using LTPS technologies, the new display has higher tranmissivity, which contributes to a one-third (1/3rd) power consumption savings compared to the conventional a-Si product. Furthermore, LTPS technologies enable the new display to have fewer driver-ICs and a finer driving circuit layout. Thus, the display’s border can be narrowed by nearly 45%, which helps doctors to more smoothly read and interpret multi-frame radiology and mammography images.

Samples of this new product will be available in the fourth quarter of 2017, and mass production is planned in the second quarter of 2018. JDI plans to further expand its medical-use display lineup by adopting cutting-edge LTPS technologies.

General Specifications
  New Product
(LTPS TFT)
Conventional Product
(JDI’s Amorphous Silicon TFT)
Screen size (diagonal) 21.3 inches
Resolution 2048 x 2560 2048 x 2560
Pixels per inch 154ppi 154ppi
LC mode IPS
Contrast ratio 1700:1(typ.) 1500:1(typ.)
Luminance 2000cd/m2
Power consumption 36W (2000cd/m2) 54W (2000cd/m2)
Border width
(long-side borders)
5.54mm 10mm


About Japan Display Inc.
Japan Display Inc. (JDI) is the leading global manufacturer of advanced small- and medium-sized LTPS LCD panels. By leveraging its advanced technologies and the world's largest LTPS production capacity, JDI provides high resolution, low power consumption and thin displays for smartphones, tablets, automotive electronics, digital cameras, medical equipment and other electronic devices. JDI, which commenced operations in April 2012, was formed through the consolidation of the display panel businesses of Sony, Hitachi and Toshiba. The company's common stock is traded on the Tokyo Stock Exchange with the securities code number 6740. For more information
please visit: http://www.j-display.com/english/.


The information contained in this press release is accurate as of the date of issuance and is subject to change without notice. Information in this press release, other than statements of historical fact, constitutes forward-looking statements, which are based on available information, operating plans and projections about future events and trends. Forward-looking statements inherently involve risks and uncertainties that could cause actual results to differ materially from those predicted in such forward-looking statements.

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