News Releases
May 29, 2014
Local Dimming Backlight Technology to its
Large size photograph (JPEG/990KB)
May 29, 2014 (Tokyo, Japan) - Japan Display Inc. (President and CEO: Shuichi Otsuka; JDI), a leading global supplier of small- and medium-sized displays, has developed a 7-inch wide QXGA (1,600 x 2,560 pixels) liquid crystal display (LCD) module which applies the newly developed local dimming backlight to its "WhiteMagic". "WhiteMagic" LCD modules have been highly regarded for their low power consumption and high visibility under sunlight.
"WhiteMagic" has the effect of improving the brightness of the entire screen by adding a White (W) subpixel, and thereby reducing the backlight power consumption. To maximize "WhiteMagic"'s effects, it is important to analyze and process the input picture image data, and drive the LCD panel and backlight appropriately and efficiently. The new product can control the backlight more efficiently through the combined use of "WhiteMagic" and the local dimming backlight. It reduces power consumption by 20% compared with conventional "WhiteMagic" modules*. The new local dimming backlight adopts the edge-lit method, in which the LEDs are placed at the edges of the lightguide plate. By taking this approach, it is as thin as the conventional thin backlight, with a total module reduction of up to 1.16 mm.
JDI will propose "WhiteMagic" for diverse applications and strive to meet its customer's requests.
JDI will present this product at the symposium of SID DISPLAY WEEK 2014 beginning on Sunday, June 1, 2014 in San Diego, California, USA, and exhibit from a booth No.1332. (The exhibit is scheduled to run from June 3 to 5.)
| 【Prototype specifications】 | |||
| Display mode | LTPS IPS | ||
|---|---|---|---|
| Screen size (diagonal) | 7.0-inch (17.9cm) | ||
| Number of pixels | 1,600(H) x 2,560(V) RGBW (WQXGA) | ||
| Resolution density | 431 ppi | ||
| Module thickness | 1.16mm | ||
| Dead-band | Side 1.0mm | ||
| NTSC ratio | 70 % | ||
| Contrast Ratio | 2,200:1 (19,000:1 max.) | ||
| Viewing angle | >160 degree (CR>100:1) | ||
| Surface luminance | 500cd/m2 (typ.) | ||
* Based on JDI's investigation
"WhiteMagic" is a trademark of Japan Display Inc.
About JDI
Japan Display Inc. (JDI) is the leading global manufacturer of small- and medium-sized display panels and has the world's largest manufacturing capacity for LTPS LCD panels. JDI develops, designs and manufactures displays that provide high resolution, low power consumption and an ultra thin structure for application in smartphones, tablets, automotive electronics, digital cameras, medical equipment and other electronic devices. The company's major customers include leading consumer electronics manufacturers and other well-known global companies. JDI was formed through the consolidation of the display panel businesses of Sony, Hitachi and Toshiba and commenced operations on April 1, 2012.
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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